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Old   April 4, 2014, 10:57
Default boundaryManipulate
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Manan
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Hi guys


Does anybody know what boundaryManipulate does in the kEpsilon turbulence model? (I figured out that

epsilon_.boundaryField().updateCoeffs();
enforces the wall functions for epsilon, but I am unsure what boundaryManipulate does!)

Quote:
epsEqn().relax();

epsEqn().boundaryManipulate(epsilon_.boundaryField ());

solve(epsEqn);
Thanks.

Last edited by MaLa; April 5, 2014 at 05:12.
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Old   January 25, 2015, 05:48
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Fumiya Nozaki
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Hi,

It finds the adjacent cells to the boundaries whose conditions are "epsilonWallFunction"
and eliminate the corresponding equations in these cells from the matrix
in order to set the epsilon values of these cells to the values calculated by the formula in the attached picture.

Hope this helps,
Fumiya
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File Type: png epsilonValue.png (6.8 KB, 11 views)
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Old   February 2, 2017, 11:46
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Nicol˛ Scapin
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Does epsEqn().boundaryManipulate(epsilonm.boundaryField ()) also implies epsilonm.correctBoundaryConditions()?

My question is due to the fact that in the mixtureKEpsilon.C the correction on the boundary for epsilonm is not done, whereas boudaryManipulate is performed.
Thus, maybe the former implies also the latter but I am not sure.

Thanks in advance
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