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gregy May 26, 2009 09:54

molecular diffusion
 
Hi,
I would like to make a simulation of molecular diffusion in closed tube. There are two gases, helium - up and nitrogen - down each in half of the tube. I want to know the mole fractions of diffusing nitrogen in various elevations as a function of time. Does anybody knows how to define the boundary conditions, model and solver to get any results?
Thank You!


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