├── LICENSE ├── README.md ├── examples ├── examples.md └── simple_detonation │ ├── 0.orig │ ├── H2 │ ├── H2O │ ├── N2 │ ├── O2 │ ├── T │ ├── U │ ├── Ydefault │ ├── alphat │ └── p │ ├── README.md │ ├── constant │ ├── chemistryProperties │ ├── combustionProperties │ ├── dynamicMeshDict │ ├── reactions │ ├── thermo.compressibleGas │ ├── thermophysicalProperties │ └── turbulenceProperties │ └── system │ ├── blockMeshDict │ ├── controlDict │ ├── decomposeParDict │ ├── funkySetFieldsDict │ ├── fvSchemes │ ├── fvSolution │ ├── sample │ └── setFieldsDict └── rhoReactingCentralFoam ├── Allwclean ├── Allwmake ├── CourantNo.H ├── Make ├── files └── options ├── createControls.H ├── createFieldRefs.H ├── createFields.H ├── directionInterpolate.H ├── readControls.H ├── readFluxScheme.H ├── rhoEEqn.H ├── rhoEqn.H ├── rhoReactingCentralFoam.C ├── rhoUEqn.H ├── rhoYEqn.H ├── setDeltaT.H └── setRDeltaT.H /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # rhoReactingCentralFoam 2 | An OpenFOAM solver that combines rhoCentralFoam and rhoReactingFoam for high-speed reactive flows. Tested extensively for ability to model detonations. 3 | 4 | This solver was originally created by Caelan Lapointe at the University of Colorado Boulder, and was developed for the Foundation version of OpenFOAM, OpenFOAM 7. 5 | 6 | --- 7 | **Detonation with adaptive meshing:** 8 | 9 | ![detonation with AMR](https://github.com/duncanam/thesis/blob/master/doc/figs/amr_cells.png) 10 | 11 | 12 | 13 | ## Example Usage 14 | Ensure you are running OpenFOAM 7. Look in the example directory for an example of a detonation being modeled, with adaptive meshing (AMR), adaptive time stepping tracking both central and acoustic time stepping (see `controlDict`), and parallelized with MPI. 15 | 16 | Additionally, an [MS Aerospace engineering thesis](https://github.com/duncanam/thesis) with example detonation runs for static and adaptive meshing can be found [here.](https://github.com/duncanam/thesis/tree/master/sim/analysis) 17 | 18 | --- 19 | ## Notes 20 | 21 | Feel free to create pull requests with questions or concerns. While I am not the primary author, I have rigorously tested this solver for detonation modeling for my master's degree work. I may be able to assist with usage or point you towards someone who can help. 22 | 23 | 24 | -------------------------------------------------------------------------------- /examples/examples.md: -------------------------------------------------------------------------------- 1 | # Examples 2 | 3 | This directory will hold examples for usage of this solver. 4 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/H2: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object H2; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 0 0 0 0]; 19 | 20 | //internalField uniform 0.028705; 21 | internalField uniform 0.02851; // from Marcantoni 22 | 23 | 24 | boundaryField 25 | { 26 | inlet 27 | { 28 | type fixedValue; 29 | value uniform 0.0; 30 | } 31 | top 32 | { 33 | type fixedValue; 34 | value uniform 0.0; 35 | } 36 | bottom 37 | { 38 | type fixedValue; 39 | value uniform 0.0; 40 | } 41 | outlet 42 | { 43 | type inletOutlet; 44 | inletValue uniform 0.0; 45 | value uniform 0.0; 46 | } 47 | frontAndBack 48 | { 49 | type fixedValue; 50 | value uniform 0; 51 | } 52 | } 53 | 54 | 55 | // ************************************************************************* // 56 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/H2O: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object H2O; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 0 0 0 0]; 19 | 20 | internalField uniform 0; 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type fixedValue; 27 | value uniform 0; 28 | } 29 | top 30 | { 31 | type fixedValue; 32 | value uniform 0; 33 | } 34 | bottom 35 | { 36 | type fixedValue; 37 | value uniform 0; 38 | } 39 | outlet 40 | { 41 | type inletOutlet; 42 | inletValue uniform 0; 43 | value uniform 0; 44 | } 45 | frontAndBack 46 | { 47 | type fixedValue; 48 | value uniform 0; 49 | } 50 | } 51 | 52 | 53 | // ************************************************************************* // 54 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/N2: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object N2; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 0 0 0 0]; 19 | 20 | //internalField uniform 0.743484; 21 | internalField uniform 0.745; // from Marcantoni 22 | 23 | 24 | boundaryField 25 | { 26 | inlet 27 | { 28 | type fixedValue; 29 | value uniform 0; 30 | } 31 | top 32 | { 33 | type fixedValue; 34 | value uniform 0; 35 | } 36 | bottom 37 | { 38 | type fixedValue; 39 | value uniform 0; 40 | } 41 | outlet 42 | { 43 | type inletOutlet; 44 | inletValue uniform 0; 45 | value uniform 0; 46 | } 47 | frontAndBack 48 | { 49 | type fixedValue; 50 | value uniform 0; 51 | } 52 | } 53 | 54 | 55 | // ************************************************************************* // 56 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/O2: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object O2; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 0 0 0 0]; 19 | 20 | //internalField uniform 0.22781; 21 | internalField uniform 0.226; // from Marcantoni 22 | 23 | 24 | boundaryField 25 | { 26 | inlet 27 | { 28 | type fixedValue; 29 | value uniform 0.0; 30 | } 31 | top 32 | { 33 | type fixedValue; 34 | value uniform 0.0; 35 | } 36 | bottom 37 | { 38 | type fixedValue; 39 | value uniform 0.0; 40 | } 41 | outlet 42 | { 43 | type inletOutlet; 44 | inletValue uniform 0.0; 45 | value uniform 0.0; 46 | } 47 | frontAndBack 48 | { 49 | type fixedValue; 50 | value uniform 0.0; 51 | } 52 | } 53 | 54 | 55 | // ************************************************************************* // 56 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/T: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object T; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 1 0 0 0]; 19 | 20 | internalField uniform 300; // to be overwritten 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type zeroGradient; 27 | } 28 | outlet 29 | { 30 | type inletOutlet; 31 | inletValue uniform 300; 32 | value uniform 300; 33 | } 34 | bottom 35 | { 36 | type zeroGradient; 37 | } 38 | top 39 | { 40 | type zeroGradient; 41 | } 42 | frontAndBack 43 | { 44 | type zeroGradient; 45 | } 46 | } 47 | 48 | 49 | // ************************************************************************* // 50 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/U: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volVectorField; 13 | location "0"; 14 | object U; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 1 -1 0 0 0 0]; 19 | 20 | internalField uniform (0 0 0); 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type slip; 27 | } 28 | top 29 | { 30 | type slip; 31 | } 32 | bottom 33 | { 34 | type slip; 35 | } 36 | outlet 37 | { 38 | type waveTransmissive; 39 | value uniform (0 0 0); 40 | field U; 41 | gamma 1.29; // Air is 1.4, H2 is 1.41 42 | phi phi; 43 | //rho thermo:rho; 44 | psi thermo:psi; 45 | lInf 1; 46 | fieldInf (0 0 0); 47 | } 48 | frontAndBack 49 | { 50 | type slip; 51 | } 52 | } 53 | 54 | 55 | // ************************************************************************* // 56 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/Ydefault: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object Ydefault; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [0 0 0 0 0 0 0]; 19 | 20 | internalField uniform 0.0; 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type fixedValue; 27 | value uniform 0.0; 28 | } 29 | top 30 | { 31 | type fixedValue; 32 | value uniform 0.0; 33 | } 34 | bottom 35 | { 36 | type fixedValue; 37 | value uniform 0.0; 38 | } 39 | outlet 40 | { 41 | type inletOutlet; 42 | inletValue uniform 0.0; 43 | value uniform 0.0; 44 | } 45 | frontAndBack 46 | { 47 | type fixedValue; 48 | value uniform 0; 49 | } 50 | } 51 | 52 | 53 | // ************************************************************************* // 54 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/alphat: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object alphat; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [1 -1 -1 0 0 0 0]; 19 | 20 | internalField uniform 0; 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type fixedValue; 27 | value uniform 0; 28 | } 29 | top 30 | { 31 | type fixedValue; 32 | value uniform 0; 33 | } 34 | bottom 35 | { 36 | type fixedValue; 37 | value uniform 0; 38 | } 39 | outlet 40 | { 41 | type zeroGradient; 42 | } 43 | frontAndBack 44 | { 45 | type fixedValue; 46 | value uniform 0; 47 | } 48 | } 49 | 50 | 51 | // ************************************************************************* // 52 | -------------------------------------------------------------------------------- /examples/simple_detonation/0.orig/p: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class volScalarField; 13 | location "0"; 14 | object p; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dimensions [1 -1 -2 0 0 0 0]; 19 | 20 | internalField uniform 101325; // to be overwritten 21 | 22 | boundaryField 23 | { 24 | inlet 25 | { 26 | type zeroGradient; 27 | } 28 | outlet 29 | { 30 | type waveTransmissive; 31 | gamma 1.29; 32 | fieldInf 101325; 33 | lInf 100; 34 | value uniform 101325; 35 | } 36 | bottom 37 | { 38 | type zeroGradient; 39 | } 40 | top 41 | { 42 | type zeroGradient; 43 | } 44 | frontAndBack 45 | { 46 | type zeroGradient; 47 | } 48 | } 49 | 50 | 51 | // ************************************************************************* // 52 | -------------------------------------------------------------------------------- /examples/simple_detonation/README.md: -------------------------------------------------------------------------------- 1 | # Simple Detonation Example 2 | 3 | 1. copy the `0.orig` directory into a new `0` directory 4 | 2. run `blockMesh` 5 | 3. run either: 6 | * `funkySetFields -time 0` for gradient ignition region (preferred method) 7 | * `setFields` for block detonation ignition region 8 | 4. run `decomposePar`, and make sure to edit the file to reflect the number of processors you are capable of using (default 20) 9 | 5. run `rhoReactingCentralFoam` 10 | 11 | To post-process, you'll need to: 12 | 1. `reconstructParMesh`, add `-latestTime` flag for only last result 13 | 2. `reconstructPar`, add `-latestTime` flag for only last result 14 | 3. `postProcess -func sample` to use the `sample` line sampling utility 15 | 16 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/chemistryProperties: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object chemistryProperties; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | chemistryType 19 | { 20 | solver ode; 21 | } 22 | 23 | chemistry on; 24 | 25 | initialChemicalTimeStep 1e-12; 26 | 27 | EulerImplicitCoeffs 28 | { 29 | cTauChem 1; 30 | equilibriumRateLimiter off; 31 | } 32 | 33 | odeCoeffs 34 | { 35 | solver RKF45; 36 | absTol 1e-09; 37 | relTol 1e-12; 38 | } 39 | 40 | // ************************************************************************* // 41 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/combustionProperties: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object combustionProperties; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | combustionModel laminar; 19 | 20 | active true; 21 | 22 | laminarCoeffs 23 | { 24 | } 25 | 26 | 27 | // ************************************************************************* // 28 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/dynamicMeshDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object dynamicMeshDict; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | dynamicFvMesh dynamicRefineFvMesh; 19 | 20 | // How often to refine 21 | refineInterval 1; 22 | 23 | // Field to be refinement on 24 | field normalisedGradP; 25 | 26 | // Refine field in between lower..upper 27 | lowerRefineLevel 0.2; 28 | upperRefineLevel 1; 29 | 30 | // If value < unrefineLevel unrefine 31 | unrefineLevel 0.2; 32 | 33 | // Have slower than 2:1 refinement 34 | nBufferLayers 3; 35 | 36 | // Refine cells only up to maxRefinement levels 37 | maxRefinement 3; 38 | 39 | // Stop refinement if maxCells reached 40 | maxCells 1000000; 41 | 42 | // Flux field and corresponding velocity field. Fluxes on changed 43 | // faces get recalculated by interpolating the velocity. Use 'none' 44 | // on surfaceScalarFields that do not need to be reinterpolated. 45 | correctFluxes 46 | ( 47 | (phi none) 48 | (nHatf none) 49 | (rhoPhi none) 50 | (alphaPhi0.water none) 51 | (ghf none) 52 | (neg none) 53 | (pos none) 54 | ); 55 | 56 | // Write the refinement level as a volScalarField 57 | dumpLevel true; 58 | 59 | 60 | // ************************************************************************* // 61 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/reactions: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | // SETUP 9 | // Chemkin format uses these units: 10 | // mol, cm^3, s, K; cal 11 | // OpenFOAM native format uses: 12 | // kmol, m^3, s, K; K 13 | // The native format is what this file is using. 14 | 15 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 16 | 17 | FoamFile 18 | { 19 | version 2.0; 20 | format ascii; 21 | class dictionary; 22 | location "constant"; 23 | object reactions; 24 | } 25 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 26 | 27 | species 28 | 4 29 | ( 30 | O2 31 | H2 32 | H2O 33 | N2 34 | ); 35 | 36 | reactions 37 | { 38 | hydrogenReaction 39 | { 40 | type irreversibleArrheniusReaction; 41 | reaction "2H2 + O2 = 2H2O"; 42 | A 1.4e13; 43 | beta 0; 44 | Ta 12995; 45 | } 46 | } 47 | 48 | 49 | // ************************************************************************* // 50 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/thermo.compressibleGas: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object thermo.compressibleGas; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | O2 18 | { 19 | specie 20 | { 21 | molWeight 31.9988; 22 | } 23 | thermodynamics 24 | { 25 | Tlow 200; 26 | Thigh 5000; 27 | Tcommon 1000; 28 | highCpCoeffs ( 3.28253784 0.00148308754 -7.57966669e-07 2.09470555e-10 -2.16717794e-14 -1088.45772 5.45323129 ); 29 | lowCpCoeffs ( 3.78245636 -0.00299673416 9.84730201e-06 -9.68129509e-09 3.24372837e-12 -1063.94356 3.65767573 ); 30 | } 31 | transport 32 | { 33 | As 1.512e-06; 34 | Ts 120; 35 | } 36 | //elements 37 | //{ 38 | // O 2; 39 | //} 40 | } 41 | 42 | H2 43 | { 44 | specie 45 | { 46 | molWeight 2.01594; 47 | } 48 | thermodynamics 49 | { 50 | Tlow 200; 51 | Thigh 5000; 52 | Tcommon 1000; 53 | highCpCoeffs ( 3.3372792 -4.94024731e-05 4.99456778e-07 -1.79566394e-10 2.00255376e-14 -950.158922 -3.20502331 ); 54 | lowCpCoeffs ( 2.34433112 0.00798052075 -1.9478151e-05 2.01572094e-08 -7.37611761e-12 -917.935173 0.683010238 ); 55 | } 56 | transport 57 | { 58 | As 6.362e-07; 59 | Ts 72; 60 | } 61 | //elements 62 | //{ 63 | // H 2; 64 | //} 65 | } 66 | 67 | H2O 68 | { 69 | specie 70 | { 71 | molWeight 18.01534; 72 | } 73 | thermodynamics 74 | { 75 | Tlow 200; 76 | Thigh 5000; 77 | Tcommon 1000; 78 | highCpCoeffs ( 3.03399249 0.00217691804 -1.64072518e-07 -9.7041987e-11 1.68200992e-14 -30004.2971 4.9667701 ); 79 | lowCpCoeffs ( 4.19864056 -0.0020364341 6.52040211e-06 -5.48797062e-09 1.77197817e-12 -30293.7267 -0.849032208 ); 80 | } 81 | transport 82 | { 83 | As 1.512e-06; 84 | Ts 120; 85 | } 86 | //elements 87 | //{ 88 | // H 2; 89 | // O 1; 90 | //} 91 | } 92 | 93 | N2 94 | { 95 | specie 96 | { 97 | molWeight 28.0134; 98 | } 99 | thermodynamics 100 | { 101 | Tlow 250; 102 | Thigh 5000; 103 | Tcommon 1000; 104 | highCpCoeffs ( 2.92664 0.0014879768 -5.68476e-07 1.0097038e-10 -6.753351e-15 -922.7977 5.980528 ); 105 | lowCpCoeffs ( 3.298677 0.0014082404 -3.963222e-06 5.641515e-09 -2.444854e-12 -1020.8999 3.950372 ); 106 | } 107 | transport 108 | { 109 | As 1.512e-06; 110 | Ts 120; 111 | } 112 | //elements 113 | //{ 114 | // N 2; 115 | //} 116 | } 117 | 118 | // ************************************************************************* // 119 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/thermophysicalProperties: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object thermophysicalProperties; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | thermoType 19 | { 20 | type hePsiThermo; 21 | mixture reactingMixture; 22 | transport sutherland; 23 | thermo janaf; 24 | energy sensibleInternalEnergy; 25 | equationOfState perfectGas; 26 | specie specie; 27 | } 28 | 29 | inertSpecie N2; 30 | 31 | chemistryReader foamChemistryReader; 32 | 33 | foamChemistryFile "$FOAM_CASE/constant/reactions"; 34 | 35 | foamChemistryThermoFile "$FOAM_CASE/constant/thermo.compressibleGas"; 36 | 37 | 38 | // ************************************************************************* // 39 | -------------------------------------------------------------------------------- /examples/simple_detonation/constant/turbulenceProperties: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "constant"; 14 | object turbulenceProperties; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | simulationType laminar; 19 | 20 | 21 | // ************************************************************************* // 22 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/blockMeshDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | object blockMeshDict; 14 | } 15 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 16 | 17 | convertToMeters 1; 18 | 19 | vertices 20 | ( 21 | (0 0 -0.04) 22 | (0.25 0 -0.04) 23 | (0.25 0.04 -0.04) 24 | (0 0.04 -0.04) 25 | (0 0 0) 26 | (0.25 0 0) 27 | (0.25 0.04 0) 28 | (0 0.04 0) 29 | ); 30 | 31 | blocks 32 | ( 33 | hex (0 1 2 3 4 5 6 7) (125 20 1) simpleGrading (1 1 1) 34 | 35 | ); 36 | 37 | edges 38 | ( 39 | ); 40 | 41 | boundary 42 | ( 43 | inlet 44 | { 45 | type wall; 46 | faces 47 | ( 48 | (0 3 7 4) 49 | ); 50 | } 51 | 52 | outlet 53 | { 54 | type patch; 55 | faces 56 | ( 57 | (1 5 6 2) 58 | ); 59 | } 60 | 61 | bottom 62 | { 63 | type wall; 64 | faces 65 | ( 66 | (0 4 5 1) 67 | ); 68 | } 69 | 70 | top 71 | { 72 | type wall; 73 | faces 74 | ( 75 | (3 2 6 7) 76 | ); 77 | } 78 | 79 | frontAndBack 80 | { 81 | type wall; 82 | faces 83 | ( 84 | (0 1 2 3) 85 | (4 7 6 5) 86 | ); 87 | } 88 | 89 | ); 90 | 91 | mergePatchPairs 92 | ( 93 | ); 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | // ************************************************************************* // 104 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/controlDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object controlDict; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | // swak4Foam libraries 19 | libs ( 20 | "libOpenFOAM.so" 21 | "libsimpleSwakFunctionObjects.so" 22 | "libswakFunctionObjects.so" 23 | "libgroovyBC.so" 24 | ); 25 | 26 | application rhoReactingCentralFoam; 27 | 28 | startFrom latestTime; 29 | 30 | startTime 0; 31 | 32 | stopAt endTime; 33 | 34 | //endTime 2.5e-4; // full run 35 | endTime 3e-5; // quick test 36 | 37 | deltaT 1e-9; 38 | 39 | writeControl adjustableRunTime; 40 | 41 | //writeInterval 2.5e-5; 42 | writeInterval 1e-6; 43 | 44 | purgeWrite 0; 45 | 46 | writeFormat ascii; 47 | 48 | writePrecision 8; 49 | 50 | writeCompression off; 51 | 52 | timeFormat general; 53 | 54 | timePrecision 6; 55 | 56 | runTimeModifiable true; 57 | 58 | adjustTimeStep yes; 59 | 60 | useAcousticCourant yes; 61 | 62 | maxCo 0.1; 63 | maxDeltaT 1e-6; 64 | maxAcousticCo 0.1; 65 | 66 | functions 67 | { 68 | #includeFunc residuals 69 | } 70 | 71 | // ************************************************************************* // 72 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/decomposeParDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object decomposeParDict; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | numberOfSubdomains 20; 19 | 20 | method simple; 21 | 22 | simpleCoeffs 23 | { 24 | n (1 20 1); 25 | delta 0.001; 26 | } 27 | 28 | hierarchicalCoeffs 29 | { 30 | n (1 1 1); 31 | delta 0.001; 32 | order xyz; 33 | } 34 | 35 | manualCoeffs 36 | { 37 | dataFile ""; 38 | } 39 | 40 | distributed no; 41 | 42 | roots ( ); 43 | 44 | 45 | // ************************************************************************* // 46 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/funkySetFieldsDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object funkySetFieldsDict; 15 | } 16 | 17 | expressions 18 | ( 19 | TGradLHS 20 | { 21 | field T; 22 | expression "-90000 * pos().x + 1200"; // vary T from 1200K to 300K over: 23 | condition "pos().x<=0.01"; // 0.01m from x=0m to x=0.01m 24 | keepPatches true; // keep BCs that were set before 25 | } 26 | 27 | Trand 28 | { 29 | field T; 30 | expression "T + 240 * rand()"; // add randomization throughout the entire domain 31 | keepPatches true; // keep BCs that were set before 32 | } 33 | 34 | pGradLHS 35 | { 36 | field p; 37 | expression "-3.03975e7 * pos().x + 405300"; // vary p from 4 atm to 1 atm over: 38 | condition "pos().x<=0.01"; // 0.01m from x=0m to x=0.01m 39 | keepPatches true; // keep BCs that were set before 40 | } 41 | ); 42 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/fvSchemes: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object fvSchemes; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | fluxScheme Kurganov; 19 | 20 | ddtSchemes 21 | { 22 | default Euler; 23 | } 24 | 25 | gradSchemes 26 | { 27 | default Gauss linear; 28 | } 29 | 30 | divSchemes 31 | { 32 | default none; 33 | div(tauMC) Gauss linear; 34 | div(phi,O2) Gauss vanLeer01; 35 | div(phi,H2) Gauss vanLeer01; 36 | div(phi,H2O) Gauss vanLeer01; 37 | div(phi,N2) Gauss vanLeer01; 38 | div(phi,Yi_h) Gauss vanLeer; 39 | } 40 | 41 | laplacianSchemes 42 | { 43 | default Gauss linear uncorrected; 44 | } 45 | 46 | interpolationSchemes 47 | { 48 | default linear; 49 | reconstruct(rho) Minmod; 50 | reconstruct(U) MinmodV; 51 | reconstruct(T) Minmod; 52 | reconstruct(Yi) Minmod; 53 | } 54 | 55 | snGradSchemes 56 | { 57 | default uncorrected; 58 | } 59 | 60 | 61 | // ************************************************************************* // 62 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/fvSolution: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object fvSolution; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | solvers 19 | { 20 | U 21 | { 22 | //solver smoothSolver; 23 | //smoother GaussSeidel; 24 | //nSweeps 2; 25 | //tolerance 1e-17; 26 | //relTol 0; 27 | 28 | solver PBiCGStab; 29 | preconditioner DIC; 30 | tolerance 1e-15; 31 | relTol 0; 32 | } 33 | 34 | h 35 | { 36 | $U; 37 | tolerance 1e-17; 38 | relTol 0; 39 | } 40 | 41 | e 42 | { 43 | $U; 44 | tolerance 1e-17; 45 | relTol 0; 46 | } 47 | 48 | "rho.*" 49 | { 50 | solver diagonal; 51 | } 52 | 53 | "(O2|H2|H2O|N2|Yi)" 54 | { 55 | solver PBiCGStab; 56 | preconditioner DILU; 57 | tolerance 1e-17; 58 | relTol 0; 59 | } 60 | 61 | } 62 | 63 | CENTRAL 64 | { 65 | } 66 | 67 | // ************************************************************************* // 68 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/sample: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object sample; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | 18 | type sets; 19 | libs ("libsampling.so"); 20 | 21 | interpolationScheme cellPoint; 22 | 23 | setFormat raw; 24 | 25 | sets 26 | ( 27 | data 28 | { 29 | type lineUniform; 30 | axis x; 31 | start (0 0.02 -0.02); 32 | end (0.25 0.02 -0.02); 33 | nPoints 1000; 34 | } 35 | ); 36 | 37 | fields (T p U H2); 38 | 39 | // ************************************************************************* // 40 | -------------------------------------------------------------------------------- /examples/simple_detonation/system/setFieldsDict: -------------------------------------------------------------------------------- 1 | /*--------------------------------*- C++ -*----------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Version: 7 6 | \\/ M anipulation | 7 | \*---------------------------------------------------------------------------*/ 8 | FoamFile 9 | { 10 | version 2.0; 11 | format ascii; 12 | class dictionary; 13 | location "system"; 14 | object setFieldsDict; 15 | } 16 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 17 | defaultFieldValues 18 | ( 19 | volScalarFieldValue T 300 // [K] 20 | volScalarFieldValue p 101325 // [Pa] 21 | ); 22 | 23 | regions 24 | ( 25 | boxToCell 26 | { 27 | box (0 0 -0.001) (0.001 0.04 0); 28 | fieldValues 29 | ( 30 | volScalarFieldValue T 3000 // [K] 31 | volScalarFieldValue p 2.0265e6 // [Pa] 32 | ); 33 | } 34 | ); 35 | 36 | 37 | // ************************************************************************* // 38 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/Allwclean: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | cd ${0%/*} || exit 1 # Run from this directory 3 | set -x 4 | 5 | #wclean libso BCs 6 | wclean 7 | 8 | # ----------------------------------------------------------------- end-of-file 9 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/Allwmake: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | cd ${0%/*} || exit 1 # Run from this directory 3 | set -x 4 | 5 | #(wmake libso BCs && wmake) 6 | wmake 7 | 8 | # ----------------------------------------------------------------- end-of-file 9 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/CourantNo.H: -------------------------------------------------------------------------------- 1 | /*---------------------------------------------------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | 5 | \\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation 6 | \\/ M anipulation | 7 | ------------------------------------------------------------------------------- 8 | License 9 | This file is part of OpenFOAM. 10 | 11 | OpenFOAM is free software: you can redistribute it and/or modify it 12 | under the terms of the GNU General Public License as published by 13 | the Free Software Foundation, either version 3 of the License, or 14 | (at your option) any later version. 15 | 16 | OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 | for more details. 20 | 21 | You should have received a copy of the GNU General Public License 22 | along with OpenFOAM. If not, see . 23 | 24 | Global 25 | centralCourantNo 26 | 27 | Description 28 | Calculates the mean and maximum wave speed based Courant Numbers. 29 | 30 | \*---------------------------------------------------------------------------*/ 31 | 32 | if (mesh.nInternalFaces()) 33 | { 34 | scalarField sumAmaxSf(fvc::surfaceSum(amaxSf)().internalField()); 35 | 36 | CoNum = 0.5*gMax(sumAmaxSf/mesh.V().field())*runTime.deltaTValue(); 37 | 38 | meanCoNum = 39 | 0.5*(gSum(sumAmaxSf)/gSum(mesh.V().field()))*runTime.deltaTValue(); 40 | 41 | acousticCoNum = 0.5*gMax 42 | ( 43 | fvc::surfaceSum 44 | ( 45 | fvc::interpolate(scalar(1)/sqrt(psi))*mesh.magSf() 46 | )().primitiveField()/mesh.V().field() 47 | )*runTime.deltaTValue(); 48 | } 49 | 50 | Info<< "Central Courant Number mean: " << meanCoNum 51 | << " max: " << CoNum 52 | << " acoustic max: " << acousticCoNum 53 | << endl; 54 | // ************************************************************************* // 55 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/Make/files: -------------------------------------------------------------------------------- 1 | rhoReactingCentralFoam.C 2 | 3 | EXE = $(FOAM_USER_APPBIN)/rhoReactingCentralFoam 4 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/Make/options: -------------------------------------------------------------------------------- 1 | EXE_INC = \ 2 | -I$(FOAM_SOLVERS)/compressible/rhoCentralFoam/BCs/lnInclude \ 3 | -I$(LIB_SRC)/finiteVolume/lnInclude \ 4 | -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \ 5 | -I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \ 6 | -I$(LIB_SRC)/transportModels/compressible/lnInclude \ 7 | -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \ 8 | -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \ 9 | -I$(LIB_SRC)/dynamicMesh/lnInclude \ 10 | -I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \ 11 | -I$(LIB_SRC)/thermophysicalModels/chemistryModel/lnInclude \ 12 | -I$(LIB_SRC)/meshTools/lnInclude \ 13 | -I$(LIB_SRC)/fvOptions/lnInclude \ 14 | -I$(LIB_SRC)/ODE/lnInclude \ 15 | -I$(LIB_SRC)/combustionModels/lnInclude \ 16 | -I$(LIB_SRC)/dynamicFvMesh/lnInclude \ 17 | -I$(LIB_SRC)/meshTools/lnInclude 18 | 19 | EXE_LIBS = \ 20 | -lfiniteVolume \ 21 | -lcompressibleTransportModels \ 22 | -lfluidThermophysicalModels \ 23 | -lspecie \ 24 | -lrhoCentralFoam \ 25 | -lturbulenceModels \ 26 | -lcompressibleTurbulenceModels \ 27 | -lmeshTools \ 28 | -lfvOptions \ 29 | -lchemistryModel \ 30 | -lreactionThermophysicalModels \ 31 | -lODE \ 32 | -lcombustionModels \ 33 | -ldynamicFvMesh \ 34 | -ltopoChangerFvMesh \ 35 | -lmeshTools 36 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/createControls.H: -------------------------------------------------------------------------------- 1 | bool useAcousticCo = runTime.controlDict().lookupOrDefault("useAcousticCo",false); 2 | 3 | scalar maxAcousticCo 4 | ( 5 | readScalar(runTime.controlDict().lookup("maxAcousticCo")) 6 | ); 7 | 8 | #include "createTimeControls.H" 9 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/createFieldRefs.H: -------------------------------------------------------------------------------- 1 | volScalarField& p = thermo.p(); 2 | const volScalarField& T = thermo.T(); 3 | const volScalarField& psi = thermo.psi(); 4 | const volScalarField& mu = thermo.mu(); 5 | 6 | bool inviscid(true); 7 | if (max(mu.primitiveField()) > 0.0) 8 | { 9 | inviscid = false; 10 | } 11 | 12 | const label inertIndex(composition.species()[inertSpecie]); 13 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/createFields.H: -------------------------------------------------------------------------------- 1 | #include "createRDeltaT.H" 2 | 3 | Info<< "Reading thermophysical properties\n" << endl; 4 | 5 | autoPtr pThermo(psiReactionThermo::New(mesh)); 6 | psiReactionThermo& thermo = pThermo(); 7 | thermo.validate(args.executable(), "h", "e"); 8 | 9 | basicMultiComponentMixture& composition = thermo.composition(); 10 | PtrList& Y = composition.Y(); 11 | 12 | const word inertSpecie(thermo.lookup("inertSpecie")); 13 | if (!composition.species().found(inertSpecie)) 14 | { 15 | FatalIOErrorIn(args.executable().c_str(), thermo) 16 | << "Inert specie " << inertSpecie << " not found in available species " 17 | << composition.species() << exit(FatalIOError); 18 | } 19 | 20 | volScalarField& e = thermo.he(); 21 | 22 | volVectorField U 23 | ( 24 | IOobject 25 | ( 26 | "U", 27 | runTime.timeName(), 28 | mesh, 29 | IOobject::MUST_READ, 30 | IOobject::AUTO_WRITE 31 | ), 32 | mesh 33 | ); 34 | 35 | volScalarField rho 36 | ( 37 | IOobject 38 | ( 39 | "rho", 40 | runTime.timeName(), 41 | mesh, 42 | IOobject::NO_READ, 43 | IOobject::AUTO_WRITE 44 | ), 45 | thermo.rho() 46 | ); 47 | 48 | volVectorField rhoU 49 | ( 50 | IOobject 51 | ( 52 | "rhoU", 53 | runTime.timeName(), 54 | mesh, 55 | IOobject::NO_READ, 56 | IOobject::NO_WRITE 57 | ), 58 | rho*U 59 | ); 60 | 61 | volScalarField rhoE 62 | ( 63 | IOobject 64 | ( 65 | "rhoE", 66 | runTime.timeName(), 67 | mesh, 68 | IOobject::NO_READ, 69 | IOobject::NO_WRITE 70 | ), 71 | rho*(e + 0.5*magSqr(U)) 72 | ); 73 | 74 | surfaceScalarField pos 75 | ( 76 | IOobject 77 | ( 78 | "pos", 79 | runTime.timeName(), 80 | mesh 81 | ), 82 | mesh, 83 | dimensionedScalar("pos", dimless, 1.0) 84 | ); 85 | 86 | surfaceScalarField neg 87 | ( 88 | IOobject 89 | ( 90 | "neg", 91 | runTime.timeName(), 92 | mesh 93 | ), 94 | mesh, 95 | dimensionedScalar("neg", dimless, -1.0) 96 | ); 97 | 98 | surfaceScalarField phi("phi", mesh.Sf() & fvc::interpolate(rhoU)); 99 | 100 | autoPtr turbulence 101 | ( 102 | compressible::turbulenceModel::New 103 | ( 104 | rho, 105 | U, 106 | phi, 107 | thermo 108 | ) 109 | ); 110 | 111 | Info<< "Creating reaction model\n" << endl; 112 | autoPtr> reaction 113 | ( 114 | CombustionModel::New(thermo, turbulence()) 115 | ); 116 | 117 | multivariateSurfaceInterpolationScheme::fieldTable fields; 118 | 119 | forAll (Y, i) 120 | { 121 | fields.add(Y[i]); 122 | } 123 | fields.add(thermo.he()); 124 | 125 | volScalarField Qdot 126 | ( 127 | IOobject 128 | ( 129 | "Qdot", 130 | runTime.timeName(), 131 | mesh, 132 | IOobject::READ_IF_PRESENT, 133 | IOobject::AUTO_WRITE 134 | ), 135 | mesh, 136 | dimensionedScalar("Qdot", dimEnergy/dimVolume/dimTime, 0.0) 137 | ); 138 | 139 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/directionInterpolate.H: -------------------------------------------------------------------------------- 1 | namespace Foam 2 | { 3 | 4 | //- Interpolate field vf according to direction dir 5 | template 6 | tmp > interpolate 7 | ( 8 | const GeometricField& vf, 9 | const surfaceScalarField& dir, 10 | const word& reconFieldName = word::null 11 | ) 12 | { 13 | tmp > tsf 14 | ( 15 | fvc::interpolate 16 | ( 17 | vf, 18 | dir, 19 | "reconstruct(" 20 | + (reconFieldName != word::null ? reconFieldName : vf.name()) 21 | + ')' 22 | ) 23 | ); 24 | 25 | GeometricField& sf = tsf.ref(); 26 | 27 | sf.rename(vf.name() + '_' + dir.name()); 28 | 29 | return tsf; 30 | } 31 | 32 | } 33 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/readControls.H: -------------------------------------------------------------------------------- 1 | 2 | if (useAcousticCo) 3 | { 4 | maxAcousticCo = readScalar(runTime.controlDict().lookup("maxAcousticCo")); 5 | } 6 | 7 | #include "readTimeControls.H" 8 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/readFluxScheme.H: -------------------------------------------------------------------------------- 1 | word fluxScheme("Kurganov"); 2 | if (mesh.schemesDict().readIfPresent("fluxScheme", fluxScheme)) 3 | { 4 | if ((fluxScheme == "Tadmor") || (fluxScheme == "Kurganov")) 5 | { 6 | Info<< "fluxScheme: " << fluxScheme << endl; 7 | } 8 | else 9 | { 10 | FatalErrorIn 11 | ( 12 | "rhoCentralFoam::readFluxScheme" 13 | ) << "fluxScheme: " << fluxScheme 14 | << " is not a valid choice. " 15 | << "Options are: Tadmor, Kurganov" 16 | << abort(FatalError); 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/rhoEEqn.H: -------------------------------------------------------------------------------- 1 | surfaceScalarField sigmaDotU 2 | ( 3 | "sigmaDotU", 4 | ( 5 | fvc::interpolate(turbulence->muEff())*mesh.magSf()*fvc::snGrad(U) 6 | + (mesh.Sf() & fvc::interpolate(tauMC)) 7 | ) 8 | & (a_pos*U_pos + a_neg*U_neg) 9 | ); 10 | 11 | solve 12 | ( 13 | fvm::ddt(rhoE) 14 | + fvc::div(phiEp) 15 | - fvc::div(sigmaDotU) 16 | == 17 | reaction->Qdot() 18 | ); 19 | 20 | e = rhoE/rho - 0.5*magSqr(U); 21 | e.correctBoundaryConditions(); 22 | thermo.correct(); 23 | rhoE.boundaryFieldRef() == rho.boundaryField()*(e.boundaryField() + 0.5*magSqr(U.boundaryField())); 24 | 25 | if (!inviscid) 26 | { 27 | fvScalarMatrix eEqn 28 | ( 29 | fvm::ddt(rho, e) - fvc::ddt(rho, e) 30 | - fvm::laplacian(turbulence->alphaEff(), e) 31 | ); 32 | eEqn.solve("e"); 33 | 34 | thermo.correct(); 35 | rhoE = rho*(e + 0.5*magSqr(U)); 36 | } 37 | 38 | Info<< "min/max(T) = " 39 | << min(T).value() << ", " << max(T).value() << endl; 40 | 41 | p.ref() = rho()/psi(); 42 | p.correctBoundaryConditions(); 43 | rho.boundaryFieldRef() == psi.boundaryField()*p.boundaryField(); 44 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/rhoEqn.H: -------------------------------------------------------------------------------- 1 | solve 2 | ( 3 | fvm::ddt(rho) 4 | + fvc::div(phi) 5 | ); 6 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/rhoReactingCentralFoam.C: -------------------------------------------------------------------------------- 1 | /*---------------------------------------------------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | 5 | \\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation 6 | \\/ M anipulation | 7 | ------------------------------------------------------------------------------- 8 | License 9 | This file is part of OpenFOAM. 10 | 11 | OpenFOAM is free software: you can redistribute it and/or modify it 12 | under the terms of the GNU General Public License as published by 13 | the Free Software Foundation, either version 3 of the License, or 14 | (at your option) any later version. 15 | 16 | OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 | for more details. 20 | 21 | You should have received a copy of the GNU General Public License 22 | along with OpenFOAM. If not, see . 23 | 24 | Application 25 | rhoReactingCentralFoam 26 | 27 | Description 28 | Density-based compressible flow solver based on central-upwind schemes of 29 | Kurganov and Tadmor with reactions 30 | 31 | Ported to OF7 by CL, based on original code from CFD Online thread : 32 | https://www.cfd-online.com/Forums/openfoam-community-contributions/82851-new-solver-supersonic-combustion.html#post286897 33 | 34 | \*---------------------------------------------------------------------------*/ 35 | 36 | #include "fvCFD.H" 37 | #include "dynamicFvMesh.H" 38 | #include "turbulentFluidThermoModel.H" 39 | #include "psiReactionThermo.H" 40 | #include "CombustionModel.H" 41 | #include "multivariateScheme.H" 42 | #include "fixedRhoFvPatchScalarField.H" 43 | #include "coupledFvsPatchFields.H" 44 | #include "directionInterpolate.H" 45 | #include "localEulerDdtScheme.H" 46 | #include "fvcSmooth.H" 47 | #include "fvOptions.H" 48 | #include "gaussConvectionScheme.H" 49 | #include "CMULES.H" 50 | #include "slicedSurfaceFields.H" 51 | 52 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 53 | 54 | int main(int argc, char *argv[]) 55 | { 56 | #include "postProcess.H" 57 | 58 | #include "setRootCase.H" 59 | 60 | #include "createTime.H" 61 | #include "createDynamicFvMesh.H" 62 | #include "createControls.H" 63 | #include "createFields.H" 64 | #include "createFieldRefs.H" 65 | #include "createFvOptions.H" 66 | 67 | // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 68 | 69 | #include "readFluxScheme.H" 70 | 71 | dimensionedScalar v_zero("v_zero", dimVolume/dimTime, 0.0); 72 | 73 | // Courant numbers used to adjust the time-step 74 | scalar CoNum = 0.0; 75 | scalar meanCoNum = 0.0; 76 | scalar acousticCoNum = 0.0; 77 | scalar startTimeIndex = runTime.timeIndex(); 78 | 79 | Info<< "\nStarting time loop\n" << endl; 80 | 81 | while (runTime.run()) 82 | { 83 | #include "readControls.H" 84 | 85 | 86 | // Indicators for refinement. Note: before runTime++ 87 | // only for postprocessing reasons. Grabbed from 88 | // PDRFoamAutoRefine.C. 89 | tmp tmagGradP = mag(fvc::grad(p)); 90 | volScalarField normalisedGradP 91 | ( 92 | "normalisedGradP", 93 | tmagGradP()/max(tmagGradP()) 94 | ); 95 | normalisedGradP.writeOpt() = IOobject::AUTO_WRITE; 96 | tmagGradP.clear(); 97 | 98 | 99 | // Do any mesh changes 100 | if (runTime.timeIndex() - startTimeIndex > 0) 101 | { 102 | mesh.update(); 103 | } 104 | 105 | if (!LTS) 106 | { 107 | #include "setDeltaT.H" 108 | runTime++; 109 | } 110 | 111 | // --- Directed interpolation of primitive fields onto faces 112 | 113 | surfaceScalarField rho_pos(interpolate(rho, pos)); 114 | surfaceScalarField rho_neg(interpolate(rho, neg)); 115 | 116 | surfaceVectorField rhoU_pos(interpolate(rhoU, pos, U.name())); 117 | surfaceVectorField rhoU_neg(interpolate(rhoU, neg, U.name())); 118 | 119 | volScalarField rPsi("rPsi", 1.0/psi); 120 | surfaceScalarField rPsi_pos(interpolate(rPsi, pos, T.name())); 121 | surfaceScalarField rPsi_neg(interpolate(rPsi, neg, T.name())); 122 | 123 | surfaceScalarField e_pos(interpolate(e, pos, T.name())); 124 | surfaceScalarField e_neg(interpolate(e, neg, T.name())); 125 | 126 | surfaceVectorField U_pos("U_pos", rhoU_pos/rho_pos); 127 | surfaceVectorField U_neg("U_neg", rhoU_neg/rho_neg); 128 | 129 | surfaceScalarField p_pos("p_pos", rho_pos*rPsi_pos); 130 | surfaceScalarField p_neg("p_neg", rho_neg*rPsi_neg); 131 | 132 | surfaceScalarField phiv_pos("phiv_pos", U_pos & mesh.Sf()); 133 | surfaceScalarField phiv_neg("phiv_neg", U_neg & mesh.Sf()); 134 | 135 | // Make fluxes relative to mesh-motion 136 | if (mesh.moving()) 137 | { 138 | phiv_pos -= mesh.phi(); 139 | phiv_neg -= mesh.phi(); 140 | } 141 | 142 | volScalarField c("c", sqrt(thermo.Cp()/thermo.Cv()*rPsi)); 143 | 144 | surfaceScalarField cSf_pos("cSf_pos",interpolate(c, pos, T.name())*mesh.magSf()); 145 | surfaceScalarField cSf_neg("cSf_neg",interpolate(c, neg, T.name())*mesh.magSf()); 146 | 147 | surfaceScalarField ap("ap",max(max(phiv_pos + cSf_pos, phiv_neg + cSf_neg), v_zero)); 148 | surfaceScalarField am("am",min(min(phiv_pos - cSf_pos, phiv_neg - cSf_neg), v_zero)); 149 | 150 | surfaceScalarField a_pos("a_pos", ap/(ap - am)); 151 | 152 | surfaceScalarField amaxSf("amaxSf", max(mag(am), mag(ap))); 153 | 154 | surfaceScalarField aSf("aSf", am*a_pos); 155 | 156 | if (fluxScheme == "Tadmor") 157 | { 158 | aSf = -0.5*amaxSf; 159 | a_pos = 0.5; 160 | } 161 | 162 | surfaceScalarField a_neg("a_neg", 1.0 - a_pos); 163 | 164 | phiv_pos *= a_pos; 165 | phiv_neg *= a_neg; 166 | 167 | surfaceScalarField aphiv_pos("aphiv_pos", phiv_pos - aSf); 168 | surfaceScalarField aphiv_neg("aphiv_neg", phiv_neg + aSf); 169 | 170 | // Reuse amaxSf for the maximum positive and negative fluxes 171 | // estimated by the central scheme 172 | amaxSf = max(mag(aphiv_pos), mag(aphiv_neg)); 173 | 174 | #include "CourantNo.H" 175 | 176 | if (LTS) 177 | { 178 | #include "setRDeltaT.H" 179 | runTime++; 180 | } 181 | 182 | Info<< "Time = " << runTime.timeName() << nl << endl; 183 | 184 | phi = aphiv_pos*rho_pos + aphiv_neg*rho_neg; 185 | 186 | surfaceVectorField phiUp 187 | ( 188 | (aphiv_pos*rhoU_pos + aphiv_neg*rhoU_neg) 189 | + (a_pos*p_pos + a_neg*p_neg)*mesh.Sf() 190 | ); 191 | 192 | surfaceScalarField phiEp 193 | ( 194 | "phiEp", 195 | aphiv_pos*(rho_pos*(e_pos + 0.5*magSqr(U_pos)) + p_pos) 196 | + aphiv_neg*(rho_neg*(e_neg + 0.5*magSqr(U_neg)) + p_neg) 197 | + aSf*p_pos - aSf*p_neg 198 | ); 199 | 200 | // Make flux for pressure-work absolute 201 | if (mesh.moving()) 202 | { 203 | phiEp += mesh.phi()*(a_pos*p_pos + a_neg*p_neg); 204 | } 205 | 206 | volScalarField muEff("muEff", turbulence->muEff()); 207 | volTensorField tauMC("tauMC", muEff*dev2(Foam::T(fvc::grad(U)))); 208 | 209 | // --- Solve density 210 | #include "rhoEqn.H" 211 | 212 | // --- Solve momentum 213 | #include "rhoUEqn.H" 214 | 215 | //CL --- Solve species 216 | #include "rhoYEqn.H" 217 | 218 | // --- Solve energy 219 | #include "rhoEEqn.H" 220 | 221 | turbulence->correct(); 222 | 223 | runTime.write(); 224 | 225 | Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s" 226 | << " ClockTime = " << runTime.elapsedClockTime() << " s" 227 | << nl << endl; 228 | } 229 | 230 | Info<< "End\n" << endl; 231 | 232 | return 0; 233 | } 234 | 235 | // ************************************************************************* // 236 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/rhoUEqn.H: -------------------------------------------------------------------------------- 1 | solve 2 | ( 3 | fvm::ddt(rhoU) 4 | + fvc::div(phiUp) 5 | ); 6 | 7 | U.ref() = rhoU()/rho(); 8 | U.correctBoundaryConditions(); 9 | rhoU.boundaryFieldRef() == rho.boundaryField()*U.boundaryField(); 10 | 11 | if (!inviscid) 12 | { 13 | solve 14 | ( 15 | fvm::ddt(rho, U) - fvc::ddt(rho, U) 16 | - fvm::laplacian(turbulence->muEff(), U) 17 | - fvc::div(tauMC) 18 | ); 19 | rhoU = rho*U; 20 | } 21 | 22 | Info << "\nmin / max mag(U) ; " << gMin(mag(U)()()) << " / " << gMax(mag(U)()()) << nl << endl; 23 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/rhoYEqn.H: -------------------------------------------------------------------------------- 1 | tmp> mvConvection 2 | ( 3 | fv::convectionScheme::New 4 | ( 5 | mesh, 6 | fields, 7 | phi, 8 | mesh.divScheme("div(phi,Yi_h)") 9 | ) 10 | ); 11 | 12 | { 13 | reaction->correct(); 14 | Qdot = reaction->Qdot(); 15 | volScalarField Yt(0*Y[0]); 16 | 17 | forAll(Y, i) 18 | { 19 | if (i != inertIndex && composition.active(i)) 20 | { 21 | volScalarField& Yi = Y[i]; 22 | 23 | fvScalarMatrix YiEqn 24 | ( 25 | fvm::ddt(rho, Yi) 26 | + mvConvection->fvmDiv(phi, Yi) 27 | - reaction->R(Yi) 28 | ); 29 | 30 | if (!inviscid) 31 | { 32 | YiEqn -= fvm::laplacian(turbulence->muEff(), Yi); 33 | } 34 | 35 | YiEqn.solve("Yi"); 36 | Yi.max(0.0); 37 | Yi.correctBoundaryConditions(); 38 | Yt += Yi; 39 | } 40 | } 41 | 42 | Y[inertIndex] = scalar(1) - Yt; 43 | Y[inertIndex].max(0.0); 44 | } 45 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/setDeltaT.H: -------------------------------------------------------------------------------- 1 | /*---------------------------------------------------------------------------*\ 2 | ========= | 3 | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 4 | \\ / O peration | Website: https://openfoam.org 5 | \\ / A nd | Copyright (C) 2011-2018 OpenFOAM Foundation 6 | \\/ M anipulation | 7 | ------------------------------------------------------------------------------- 8 | License 9 | This file is part of OpenFOAM. 10 | OpenFOAM is free software: you can redistribute it and/or modify it 11 | under the terms of the GNU General Public License as published by 12 | the Free Software Foundation, either version 3 of the License, or 13 | (at your option) any later version. 14 | OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 | for more details. 18 | You should have received a copy of the GNU General Public License 19 | along with OpenFOAM. If not, see . 20 | Global 21 | setDeltaT 22 | Description 23 | Reset the timestep to maintain a constant maximum courant Number. 24 | Reduction of time-step is immediate but increase is damped to avoid 25 | unstable oscillations. 26 | \*---------------------------------------------------------------------------*/ 27 | 28 | if (adjustTimeStep && useAcousticCo) 29 | { 30 | scalar maxDeltaTFact = 31 | min(maxCo/(CoNum + small), maxAcousticCo/(acousticCoNum + small)); 32 | 33 | scalar deltaTFact = min(min(maxDeltaTFact, 1.0 + 0.1*maxDeltaTFact), 1.2); 34 | 35 | runTime.setDeltaT 36 | ( 37 | min 38 | ( 39 | deltaTFact*runTime.deltaTValue(), 40 | maxDeltaT 41 | ) 42 | ); 43 | 44 | Info<< "deltaT = " << runTime.deltaTValue() << endl; 45 | } 46 | else if (adjustTimeStep) 47 | { 48 | scalar maxDeltaTFact = maxCo/(CoNum + small); 49 | scalar deltaTFact = min(min(maxDeltaTFact, 1.0 + 0.1*maxDeltaTFact), 1.2); 50 | 51 | runTime.setDeltaT 52 | ( 53 | min 54 | ( 55 | deltaTFact*runTime.deltaTValue(), 56 | maxDeltaT 57 | ) 58 | ); 59 | } 60 | 61 | // ************************************************************************* // 62 | -------------------------------------------------------------------------------- /rhoReactingCentralFoam/setRDeltaT.H: -------------------------------------------------------------------------------- 1 | { 2 | volScalarField& rDeltaT = trDeltaT.ref(); 3 | 4 | // Cache old reciprocal time scale field 5 | volScalarField rDeltaT0("rDeltaT0", rDeltaT); 6 | 7 | // Maximum flow Courant number 8 | scalar maxCo(runTime.controlDict().lookupOrDefault("maxCo", 0.5)); 9 | 10 | // Maximum time scale 11 | scalar maxDeltaT(runTime.controlDict().lookupOrDefault("maxDeltaT", GREAT)); 12 | 13 | // Smoothing parameter (0-1) when smoothing iterations > 0 14 | scalar rDeltaTSmoothingCoeff(runTime.controlDict().lookupOrDefault("rDeltaTSmoothingCoeff",0.02)); 15 | 16 | // Damping coefficient (1-0) 17 | scalar rDeltaTDampingCoeff(runTime.controlDict().lookupOrDefault("rDeltaTDampingCoeff",0.9)); 18 | 19 | // Maximum change in cell temperature per iteration 20 | // (relative to previous value) 21 | scalar alphaTemp(runTime.controlDict().lookupOrDefault("alphaTemp",1)); 22 | 23 | { 24 | // Set the reciprocal time-step from the local Courant number 25 | rDeltaT.ref() = 26 | ( 27 | fvc::surfaceSum(amaxSf)() 28 | /((2*maxCo)*mesh.V()) 29 | ); 30 | 31 | // Limit the largest time scale 32 | rDeltaT.max(1/maxDeltaT); 33 | } 34 | 35 | // Reaction source time scale 36 | if (alphaTemp < 1.0) 37 | { 38 | volScalarField::Internal rDeltaTT 39 | ( 40 | mag(Qdot)/(alphaTemp*rho*thermo.Cp()*T) 41 | ); 42 | 43 | rDeltaT.ref() = max 44 | ( 45 | rDeltaT(), 46 | rDeltaTT 47 | ); 48 | } 49 | 50 | // Update tho boundary values of the reciprocal time-step 51 | rDeltaT.correctBoundaryConditions(); 52 | 53 | // Spatially smooth the time scale field 54 | if (rDeltaTSmoothingCoeff < 1.0) 55 | { 56 | fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff); 57 | } 58 | 59 | // Limit rate of change of time scale 60 | // - reduce as much as required 61 | // - only increase at a fraction of old time scale 62 | if 63 | ( 64 | rDeltaTDampingCoeff < 1.0 65 | && runTime.timeIndex() > runTime.startTimeIndex() + 1 66 | ) 67 | { 68 | rDeltaT = max 69 | ( 70 | rDeltaT, 71 | (scalar(1.0) - rDeltaTDampingCoeff)*rDeltaT0 72 | ); 73 | } 74 | 75 | Info<< "Flow time scale min/max = " 76 | << gMin(1/(rDeltaT.primitiveField() + 1.0e-12)) 77 | << ", " << gMax(1/(rDeltaT.primitiveField() + 1.0e-12)) << endl; 78 | } 79 | --------------------------------------------------------------------------------