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-   -   what is the special need for LRR RSM model? (http://www.cfd-online.com/Forums/openfoam-solving/69020-what-special-need-lrr-rsm-model.html)

yuhai October 9, 2009 06:05

what is the special need for LRR RSM model?
 
2 Attachment(s)
hi, dear foamers,
I am on 1.5-dev.
And I am trying for LRR, but unsucessful.
---------------------------------------------------------
Create time

Create mesh, no clear-out for time = 9.5e-05

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting LES turbulence model LRRDiffStress
LRRDiffStressCoeffs
{
ce 1.05;
ck 0.09;
c1 1.8;
c2 0.6;
couplingFactor 0;
}


Starting time loop

Time = 9.51e-05

Courant Number mean: 7.64659e-05 max: 0.00441883 velocity magnitude: 6.35951
Floating point exception
.................................................. .....................
I have tried to use the DeardorffDiffStress as a start up, then change to LRR, but stil this problem.
Can you give me some hints for this?
thanks in advance.


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