Porosity and Kinematic Diffusivity -- CFD Online Discussion Forums

February 6, 2006, 22:21	Porosity and Kinematic Diffusivity	#1
Luis Guest Posts: n/a	Hi, I have a problem. I am trying to set up a kinematic diffusivity variable, but with different values of porosity (Two subregions). Basically what I want is : Porosity= a for z<=zo Porosity= b for z>zo Since Kinematic Diffusivity = Porosity*Binary Diffusion Binary diffusion is taken from an empirical formula. Any ideas? Thank you Luis

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