Omega at the wall -- CFD Online Discussion Forums

January 10, 2011, 05:16	Omega at the wall	#1
sla New Member Slawomir Join Date: May 2009 Posts: 8 Rep Power: 17	Hello, How is technically the omega (specific dissipation rate) computed at the wall in case of low-Reynolds number approach (RANS k-omega model)? According to Menter (1993) the omega is computed at the wall itself, so for y=0. Does it mean that the omega value is computed at the first cell near to the wall or it is estimated exactly for y=0 using the Neumann boundary condition and ghost cells. thank you, sla

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