Turbulence model & y+ for Natural convection -- CFD Online Discussion Forums

May 3, 2012, 05:22	Turbulence model & y+ for Natural convection	#1
Bionico Senior Member Flavio Join Date: Sep 2011 Location: Brescia, Italy Posts: 181 Rep Power: 15	Hi everybody, I'm simulating a radiator in a room: since a I want to get a very accurate solution about the power generated by the radiator, I'm trying to create a model that let me to predict the laminar-turbulent transition of the boundary layer along the geometry (that is quite complex and close to the real one). Does anybody have experience with natural convection? Maybe I must use Low-Re correction or some complex turbulence model like k-kl-omega or Transition SST (not simply two-equations models)... and i think that y+ should be < 1 (now y+ < 4) Any advice? Last edited by Bionico; May 3, 2012 at 07:56.

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