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Mass transfer analysis on the wall of a geometry

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Old   January 23, 2014, 10:16
Default Mass transfer analysis on the wall of a geometry
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Hi everyone,

I am working on a mass transfer analysis (FLUENT) on the wall of a geometry and I need to adress a new differential equation.

The setup of the problem:

Boundary conditions:

C initial = constant
flux on the wall n:

dn/dt = (1/2*alpha*n + beta) , alpha and beta constants

How do I handle these equation, do I need to use UDF? If so, would you give me some help with that?

Hope I get some answers.
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