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November 29, 2018, 05:35 |
Mass source term in chtMultiRegionFoam
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#1 |
New Member
Join Date: Mar 2015
Posts: 10
Rep Power: 11 |
Hi all,
I would like to introduce a mass source in the fluid part of chtMultiRegionFoam. My first try was to introduce a semiImplicitSouce: Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 5 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "constant"; object fvOptions; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // scalarSource { type scalarSemiImplicitSource; duration 1000.0; selectionMode all; volumeMode absolute; injectionRateSuSp { rho (-0.1 0); } } It is possible to change other fields (energy,...) with this kind of source, but I am interested in changing the masses. Please could you give me a hint what's going wrong and how can I change rho in chtMultiRegionFoam? Thanks a lot, J. |
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December 4, 2018, 04:22 |
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#2 |
New Member
Join Date: Mar 2015
Posts: 10
Rep Power: 11 |
Did somebody have an answer to my question?
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December 7, 2018, 05:13 |
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#3 |
New Member
Join Date: Mar 2015
Posts: 10
Rep Power: 11 |
Okay, I solved the problem. The bug (or missing feature) was that there is no fvOptions-term in the pressure equation of chtMultiRegionFoam. With adding this missing term my fvOptions mass term works fine. Here is our code fix:
Code:
fvScalarMatrix p_rghEqn ( p_rghEqnComp + p_rghEqnIncomp == + fvOptions(psi, p_rgh, rho.name()) ); |
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January 18, 2019, 08:42 |
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#4 |
Senior Member
Joachim Herb
Join Date: Sep 2010
Posts: 650
Rep Power: 22 |
Included in OpenFOAM-dev branch with https://bugs.openfoam.org/view.php?id=3146
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chtmultiregionfoam, mass source term |
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