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Derive values from built in functions

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Hello,

i would like to do the following:
i want to know the area-average value of, lets say acoustic pressure (acpr.p_t) in a domain and then subtract it from another area-average value of this value in a domain.

What are the names of the functions for that (sth like integrate(integrate(acpr.Lp,x,0,5),y,0,5)/(5*5) does not work...), so i can use it in "variables"?
How can i combine it later? Using Global evaluation?

Greetings!


Okay, got it. Pretty easy, anyway, for others: You have to use the "domain probe" under definitions and evaluate it using global evaluation.

0 Replies Last Post 13.08.2016, 12:27 GMT-4
COMSOL Moderator

Hello E Sing

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