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-   -   Introducing diffsuion tensor in fluent (http://www.cfd-online.com/Forums/fluent/41129-introducing-diffsuion-tensor-fluent.html)

Bharat May 25, 2006 21:23

Introducing diffsuion tensor in fluent
 
While solving mass transfer problems using Fluent, is there a way to replace the scalar diffusivity of a substance with a diffusion tensor at least in 2D? How to go about in solving such a problem? Any suggestions?

Swarup May 26, 2006 12:22

Re: Introducing diffsuion tensor in fluent
 
Try multicomponent diffusivity option. Its calculation is based upon Stefan-Maxwell formulation.

Swarup

Bharat May 31, 2006 21:28

Re: Introducing diffsuion tensor in fluent
 
I can invoke the multicomponent diffusion in the material panel for the maxwell-stefan equation. But then, I think the equation uses scalar D as a tensor D. How do i input the coefficients of the tensor? Is it in the form of a UDF?



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