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A simple integration problem

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Hi

I need to integrate a curve with respect to time, but I dont know how to do so using COMSOL. My values representing my curve is a solution from a transient model, and is a ratio between two values hence dimensionless ([-]). A picture of the curve can be seen in the attached png-file.

I have tried "Definitions->Model Couplings->Integration" but it won't work since I'm asked to select a "Geometric entity level" which my curve dont have. I haven't had any luck using the mathematical in-built operators shown in the documentation. - or am I missing something?

I hope you can help me.
(I'm using COMSOL 4.3b)


Thanks in advance


1 Reply Last Post 1 mars 2014, 17:05 UTC−5
Edgar J. Kaiser Certified Consultant

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Posted: 1 decade ago 1 mars 2014, 17:05 UTC−5

You may want to have a look there: www.comsol.com/support/knowledgebase/913/

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
You may want to have a look there: http://www.comsol.com/support/knowledgebase/913/ Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com

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