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Using different turbulent viscosities for turbulent stress components |
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April 14, 2008, 11:59 |
Hi,
does anyone have an ide
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#1 |
Senior Member
Fabian Braennstroem
Join Date: Mar 2009
Posts: 407
Rep Power: 19 |
Hi,
does anyone have an idea, how one would adjust the turbulent viscosity for each component of the reynolds stresses separately? E.g. L. Davidson uses such an approach for the v2f model modification, where he has two different eddy viscosities. I would start at the divR member function in e.g. the standard k-eps model and adjust the lines return ( - fvm::laplacian(nuEff(), U) - fvc::div(nuEff()*dev(fvc::grad(U)().T())) ); but I have no clue, how to adjust the divR matrix for certain components...!? Would be nice, if someone can point me in the right direction :-) Fabian |
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