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calculating a flux through a curved surface
Posted 2012年12月30日 GMT-5 09:59 Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3 0 Replies
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I working on solving the electrokinetics problem in the attached geometry.
I solve the problem but I am having problems with post-processing.
I am interested in calculating the flux through the left semi-circular lobe.
For simplicity lets assume we have one species.
Obviously the flux has an x and y component ( jx and jy).
I have tried using line integration of the total normal flux offered by Comsol but I got the incorrect solution.
I tried to simplify the problem by understanding how line integration works and I get a weird result.
So when I did line integration of 1 on the left semi-circular lobe I simply got pi/2*R which makes sense.
When I integrated x on the lobe I got R^2. This doesn't make sense... I have not been able to fully understand how the line integration function works?
What command should I type in to get the total flux through ?
jx*ny+jy*nx
(nx and ny are the normal vectors to the geometry)
Thanks,
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Hello Yoav Green
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