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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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How to integrate fluxes across a line

Posted Feb 7, 2012, 11:27 a.m. EST Results & Visualization Version 3.5a 3 Replies

Carlo
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I know that it is very easy to integrate a quantity over a boundary. My question is: it is possible to integrate a quantity over a line between two points belonging to a boundary ? I dont need to integrate the quantity over the entire boundary, but only over a part of that boundary
3 Replies Last Post Feb 8, 2012, 7:50 a.m. EST
Edgar Kaiser
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Posted: 1 decade ago Feb 7, 2012, 11:44 a.m. EST

You can choose Line Integration in the Results - Derived values section. You must some way create this line in the geometry in order to be able to select it as the integration path. You can find some line primitives under more primitives or you might create a line on a workplane.

Cheers
Edgar
You can choose Line Integration in the Results - Derived values section. You must some way create this line in the geometry in order to be able to select it as the integration path. You can find some line primitives under more primitives or you might create a line on a workplane. Cheers Edgar
Carlo
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Posted: 1 decade ago Feb 7, 2012, 11:49 a.m. EST
Thanks a lot.
Your suggestion is suitable in the version 3.5a ?
Thanks a lot. Your suggestion is suitable in the version 3.5a ?
Edgar Kaiser
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Posted: 1 decade ago Feb 8, 2012, 7:50 a.m. EST

One click into the Postprocessing menu shows you that you have Edge Integration in 3.5a. And you can draw lines in 3.5a.
One click into the Postprocessing menu shows you that you have Edge Integration in 3.5a. And you can draw lines in 3.5a.

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