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1D integration in 2D domain

Posted 1 oct. 2013, 07:47 UTC−4 2 Replies

brc
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Hi,

I am trying to solve a mass transfer problem in a sphere (represented by a square, just as in the packed bed reactor example).

I want to continuously integrate the concentration at each time step ONLY across y-direction (radius) to calculate how much mass has diffused out and therefore the outer concentration (which is the Dirichlet boundary concentration I use). I multiply the integral by 4*pi*y^2

In definitions/model couplings the only options are either boundary integration or domain integration, which are not useful for this problem.

Any idea is appreciated...

Thanks

2 Replies Last Post 19 oct. 2013, 04:59 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 1 decade ago 1 oct. 2013, 08:11 UTC−4
Hello,
Sounds like a projection coupling operator would do the trick - If I correctly understand what you want to achieve. Check out the Reference Manual, version 4.3b, page 288.
Best,
Jeff
Hello, Sounds like a projection coupling operator would do the trick - If I correctly understand what you want to achieve. Check out the Reference Manual, version 4.3b, page 288. Best, Jeff
brc
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Posted: 1 decade ago 19 oct. 2013, 04:59 UTC−4
Thanks!
Thanks!

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