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#1 |
Senior Member
Saeed Jamshidi
Join Date: Aug 2019
Posts: 214
Rep Power: 8 ![]() |
Hello,
I'm going to adapt nutilda in 0 folder for my simulation, but I don't know how can I do it?! Although I'v read lots of materials about it, I couldn't reach a conclusion. there are various boundary types for nutilda, such as symmetry, fixedValue ... what is the type of nutilda for slip boundary??? please, provide me some information regarding this. Any ideas are welcome. |
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#2 |
Senior Member
Join Date: Apr 2020
Location: UK
Posts: 711
Rep Power: 14 ![]() |
I am confused as to why you are talking about nutilda, i.e. the Spalart Allmaras model, for an LES simulation ... but as for your question: a slip boundary is the same as a symmetry plane (think about what the two conditions mean - they are equivalent). So just apply a symmetry boundary.
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#3 |
Senior Member
Saeed Jamshidi
Join Date: Aug 2019
Posts: 214
Rep Power: 8 ![]() |
Dear Tobermory, thank for the reply.
I just want to run pitzdaily problem in the below tutorial: Code:
\\wsl.localhost\Ubuntu-18.04\home\myfoam\OpenFOAM\myfoam-v2112\run\tutorials\incompressible\pisoFoam\LES\pitzDaily\0 Besides, by searching among other tutorials I found zerogradient type for slip boundary condition. Here is the turbulence model turbulenceProperties: Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v2112 | | \\ / A nd | Website: www.openfoam.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object turbulenceProperties; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // simulationType LES; LES { LESModel dynamicKEqn; turbulence on; printCoeffs on; delta cubeRootVol; dynamicKEqnCoeffs { filter simple; } cubeRootVolCoeffs { deltaCoeff 1; } PrandtlCoeffs { delta cubeRootVol; cubeRootVolCoeffs { deltaCoeff 1; } smoothCoeffs { delta cubeRootVol; cubeRootVolCoeffs { deltaCoeff 1; } maxDeltaRatio 1.1; } Cdelta 0.158; } vanDriestCoeffs { delta cubeRootVol; cubeRootVolCoeffs { deltaCoeff 1; } smoothCoeffs { delta cubeRootVol; cubeRootVolCoeffs { deltaCoeff 1; } maxDeltaRatio 1.1; } Aplus 26; Cdelta 0.158; } smoothCoeffs { delta cubeRootVol; cubeRootVolCoeffs { deltaCoeff 1; } maxDeltaRatio 1.1; } } // ************************************************************************* // |
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#4 |
Senior Member
Join Date: Apr 2020
Location: UK
Posts: 711
Rep Power: 14 ![]() |
Yep - zeroGradient is the correct one - that gives a symmetry condition.
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