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How to define a convection-diffusion Term in to different subdomains?

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Dear all;

I am trying to model a fractured porous media to investigate solvent diffusion from fracture into the matrix. To do so, I have already developed a 2D geometry composed of two rectangulars, i.e. geom1 and geom2. There is a term in the model used to account for mass transfer between fracture and matrix; I mean:

R=k*(CF1-CM1) (kindly please find the attached file);

Running the solver; COMSOL generates an error massage "can not evaluate CM1". I think it is due to the coupling nature of this type of equation.

Can anyone help me in this regard?
Your kind contribution is highly appreciated in advance;



2 Replies Last Post May 2, 2010, 2:58 p.m. EDT

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Posted: 1 decade ago May 2, 2010, 2:58 p.m. EDT
I am doing the same research
contact me via milad.saidian@gmail.com
regards
I am doing the same research contact me via milad.saidian@gmail.com regards

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Posted: 1 decade ago May 2, 2010, 2:58 p.m. EDT
I am doing the same research
contact me via milad.saidian@gmail.com
regards
I am doing the same research contact me via milad.saidian@gmail.com regards

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