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How to couple several boundary conditions in PDE problem?

Posted 2 nov. 2010, 09:14 UTC−4 2 Replies

youf Blue
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Hi, everybody

I'm soving a PDE problem which has some boundary conditions. Several BCs are variables and form a complex equation. Then how to build the BC?

Any advices are appreciated!

youf.
2 Replies Last Post 2 nov. 2010, 09:58 UTC−4
Sven Friedel COMSOL Employee

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Posted: 1 decade ago 2 nov. 2010, 09:19 UTC−4
Can you please be a bit more specific?
Can you please be a bit more specific?
youf Blue
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Posted: 1 decade ago 2 nov. 2010, 09:58 UTC−4
Hi, Sven

Thanks for your reply!

The PDE problem is in 1D (from x=0 to x=d) and with general form.

There are 2 variables (y1,y2) and 4 BCs ( y1(0), y1(d), y2(0), y2(d)).
The coupled BC is: y1(0)=y1(d)*y2(0)*exp(y1(0)+y2(d)).

Then how to handle it?

Thank you!

youf.
Hi, Sven Thanks for your reply! The PDE problem is in 1D (from x=0 to x=d) and with general form. There are 2 variables (y1,y2) and 4 BCs ( y1(0), y1(d), y2(0), y2(d)). The coupled BC is: y1(0)=y1(d)*y2(0)*exp(y1(0)+y2(d)). Then how to handle it? Thank you! youf.

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