question about Species diffusivity -- CFD Online Discussion Forums

November 1, 2003, 20:15	question about Species diffusivity	#1
zhou1 Guest Posts: n/a	I defined a species diffusivity using "DEFINE_DIFFUSIVITY" and i try to use this species diffusivity value in my UDF. I have confused about how to use "C_DIFF_L(c,t,i,j)". Where, "i" denotes the species "i" that I want to use and "j" denotes what? How can I obtain the species "i" diffusivity by "C_DIFF_L(c,t,i,j)"? Thanks.

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