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Negative initial temperature T0 in rhoPimpleFoam |
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March 28, 2023, 10:34 |
Negative initial temperature T0 in rhoPimpleFoam
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#1 |
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mohammad morovati
Join Date: Mar 2023
Posts: 1
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Hi,
I am trying to simulate a fan inside a canal by rhoPimpleFoam solver. Fan is rotating by w=104, and I face to negative initial temperature in 3rth part of first iteration. It would be great appreciated if someone could guide me. all files are attached |
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March 31, 2023, 10:42 |
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#2 |
Member
Join Date: Feb 2020
Posts: 79
Rep Power: 6 |
Hi,
For compressible cases you have to limit T and U in fvOption (constant directory) : Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v2106 | | \\ / A nd | Website: www.openfoam.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object fvOptions; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // /*viscousDissipation { type viscousDissipation; enabled true; }*/ limitT { type limitTemperature; min 230; max 400; selectionMode all; } limitU { type limitVelocity; selectionMode all; max 400; } // ************************************************************************* // Best regards, |
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