Velocity at the wall

Roland R · August 26, 2010, 12:10

Hello CFX Users,

I have an interest problem. For example there is an simple tube with "no slip" walls. Based on the contour plot value of the velocity is zero at the walls. If the velocity is calculated by the "probe variable" (in one point) than it is not zero. (in my case about 35-40 m/s)
How is it possible?

Thanks
Roland

stumpy · August 26, 2010, 16:22

Look in the doc for the difference between conservative and hybrid values. The probe is returning the conservative value, the plot is showing the hybrid value.

August 26, 2010, 12:10	Velocity at the wall	#1
Roland R Senior Member Roland Rakos Join Date: Mar 2009 Posts: 131 Rep Power: 17	Hello CFX Users, I have an interest problem. For example there is an simple tube with "no slip" walls. Based on the contour plot value of the velocity is zero at the walls. If the velocity is calculated by the "probe variable" (in one point) than it is not zero. (in my case about 35-40 m/s) How is it possible? Thanks Roland

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August 26, 2010, 16:22		#2
stumpy Senior Member Join Date: Apr 2009 Posts: 531 Rep Power: 21	Look in the doc for the difference between conservative and hybrid values. The probe is returning the conservative value, the plot is showing the hybrid value.