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

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.

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)

Re: mass transfer through wall by passive diffusio
 

You can define a thickness for use in conduction heat transfer in the boundary conditions panel.