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-   -   TurbulencedivRhoRU what is that (http://www.cfd-online.com/Forums/openfoam-solving/59365-turbulencedivrhoru-what.html)

arkangel October 23, 2007 11:05

Hi Foamers turbulence->div
 
Hi Foamers

turbulence->divRhoR(U) ,

can any of you explain me what this line does (found in coodles:: UEqn.H)

Thanks a lot

grtabor October 23, 2007 11:45

In LES, filtering the navier-s
 
In LES, filtering the navier-stokes equations generates a sub-grid stress term which can be written as the divergence of a tensor R. The SGS turbulence model provides this. The use of the term divRhoR is supposed to reflect the fact that this is div(rho*R); in reality its just a function call to provide the correct field

Gavin


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