Transition and y+ -- CFD Online Discussion Forums

March 29, 2017, 21:53	Transition and y+	#1
gmingardo New Member Giacomo Mingardo Join Date: Jul 2016 Posts: 12 Rep Power: 9	Hi everybody. I'm doing a simulation with CFX of incompressible and isothermal flow, with turbulence model SST. As I have to validate the results with some experiments and they don't really match, I want to try with a transition model (experiments are made in low turbulence wind tunnel). I read that for the transition model to work, I need y+ =1. My y+ is between 1 and 4, but almost everywhere equal to 4. Is it enough? Or it should really be 1 or lower everywhere? Thanks a lot for the help! Sent from my PRA-LX1 using CFD Online Forum mobile app

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