solution divergence due to turbulence

October 17, 2006, 22:35

hi to all;

I am running a hybrid grid (near body strucured and unstructured in FAR FIELD)of about 4.5 million cells on fluent using SA-turbulence model, segregated, 3D. I have a problem with the convergence, after about 7000 iterations, it gives a problem of "TURBULNCE IN CELL NO ----- " something like that which causes the solution to diverge, bad qualtative results and quatitave as well.

anyone who can help me solving this problem.

October 18, 2006, 07:27

check the following; 1) mesh quality 2) urfs for turb k e and dessipation rate 3) descritisation scheme

This things are responsible for the same

October 17, 2006, 22:35	solution divergence due to turbulence	#1
Haider Guest Posts: n/a	hi to all; I am running a hybrid grid (near body strucured and unstructured in FAR FIELD)of about 4.5 million cells on fluent using SA-turbulence model, segregated, 3D. I have a problem with the convergence, after about 7000 iterations, it gives a problem of "TURBULNCE IN CELL NO ----- " something like that which causes the solution to diverge, bad qualtative results and quatitave as well. anyone who can help me solving this problem.

October 18, 2006, 07:27	Re: solution divergence due to turbulence	#2
sach Guest Posts: n/a	check the following; 1) mesh quality 2) urfs for turb k e and dessipation rate 3) descritisation scheme This things are responsible for the same

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