k-omega turbulence model: 1 vs 2 order solution -- CFD Online Discussion Forums

August 31, 2009, 14:57	k-omega turbulence model: 1 vs 2 order solution	#1
Manucia New Member Silvia Join Date: Aug 2009 Posts: 3 Rep Power: 16	Hi, I am modelling film cooling on a blade leading edge. I got a good solution with ke realizable turbulence model. Then I refined the grid so that y+ is less than 5 and I set the kw SST turbulence model. I can get convergence only with the first order scheme solution in the dissipation rate. When I shift to the second order solution, omega residuals jump and suffer for high oscillation. Do you have any suggestion to fix the problem? Thans in advance Good work to everybody Silvia

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