Diffusivity for different species in different zones -- CFD Online Discussion Forums

June 19, 2013, 03:22	Diffusivity for different species in different zones	#1
A CFD free user Senior Member A-A Azarafza Join Date: Jan 2013 Posts: 226 Rep Power: 14	Hello guys Does anyone have any idea how to define different diffusivities for different species in various zones e.g. porous and non porous zones? From FLUENT UDF manual, it can be inferred that DIFFUSIVITY macro can be used to define a given diffusivity that is used for all species, but how can I define different diffusivities for different species in different zones? Is it possible by using the mentioned macro? It'll be highly appreciated for any suggestion __________________ Regard yours

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