Porosity and Kinematic Diffusivity
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?
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