Choise of a suitable turbulent model (k-epsilon/omega) -- CFD Online Discussion Forums

February 26, 2015, 12:41	Choise of a suitable turbulent model (k-epsilon/omega)	#1
Manda New Member Join Date: Feb 2015 Posts: 1 Rep Power: 0	Hi, i'm solving impact of swirl genetators on heat transfer in tube. And I'm still not sure with my final choise of k-epsilon realizable turbulent model. I read many discussions where they are compared k-e realizable and SST k-omega. The main problem is that for application of k-omega I need very fine near wall grid for y+ approximately equel to 1. For my conditions, it's about 110e-07 m for first cell. Currently, I have first cell equel to 510e-5 m with y+<60-120>. My conditions: d=0,008 m, v=3 m/s, Re= 2*10e05, t=300 °C, water Thank you for your possible ideas and suggestions.

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