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-   -   mass transfer through wall by passive diffusion (http://www.cfd-online.com/Forums/fluent/40466-mass-transfer-through-wall-passive-diffusion.html)

hagar April 6, 2006 05:11

mass transfer through wall by passive diffusion
 
my problem: 1. how to define a thickness of a solid wall.(the geometry includs only the face of the wall).

2.how to define boundry conditions in both sides of the wall,and mass fractions.

3. where to define diffusion constants for the wall. thank you! hagar

Evan Rosenbaum April 6, 2006 12:26

Re: mass transfer through wall by passive diffusio
 
You can't have diffusion through a solid wall. Look in the User's manual for porous jump.

hagar April 10, 2006 08:11

Re: mass transfer through wall by passive diffusio
 
hi evan! thanks for your response. how can i define a wall thickness in fluent? (with no diffusion at all)

Evan Rosenbaum April 10, 2006 13:53

Re: mass transfer through wall by passive diffusio
 
You can define a thickness for use in conduction heat transfer in the boundary conditions panel.


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