how to describe this boundary condtion in UDF? -- CFD Online Discussion Forums

November 25, 2011, 04:39	how to describe this boundary condtion in UDF?	#1
litterfree New Member litter Join Date: May 2011 Posts: 17 Rep Power: 15	HI,can anyone help me? i am now use the species transport model in FLUENT ,and i am use UDF. how to describe this boundary condion use UDF: $\partial c$ / $\partial y$ =0 and how to describe this boundary condion use UDF: $\partial c$ / $\partial y$ +c=0 y is the normal vector of the boundary,c is concentration. thank you __________________ never ever give up Last edited by litterfree; November 25, 2011 at 04:41. Reason: have error with math formula

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