slip velocity B.C -- CFD Online Discussion Forums

September 20, 2011, 05:45	slip velocity B.C	#1
sajad_abasi Member sajad Join Date: Nov 2010 Posts: 51 Rep Power: 15	HI. i want to set slip velocity condition on walls and the formula is the maxwell-smoluchowski first order slip condition in this form: us-uw=((2-alfa)/alfa)landadu/dy so i need to have u gradient with respect of y on walls. is it possible to do this with writing "CEL" expression? thanks.

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