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How to update parameter value at each step in COMSOL solver?

Posted 14 set 2018, 10:50 GMT-4 Modeling Tools & Definitions, Studies & Solvers, Equation-Based Modeling Version 5.3a 1 Reply

Gianni Tallarita
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Dear community,

I have a numerical problem I am trying to solve where I have to replace a variable inside my PDEs with an integral value calculated at each time step of the numerical procedure.

So, call my variable parameter x and call the field i am solving for Y.

I need to make sure that at each time step of the relaxation procedure x is replaced by Q/Integral (Y^2) over the domain, where Q is a constant I set. Convergence will then have a solution with an x that respects Q = x * int(Y^2).

Is there a way I can do this in COMSOL?

I apprecieate your help!

Gianni

1 Reply Last Post 15 set 2018, 11:39 GMT-4
Edgar J. Kaiser Certified Consultant
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Posted: 6 years ago 15 set 2018, 11:39 GMT-4

Gianni,

maybe an integration coupling operator in the respective domain can solve the problem.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Gianni, maybe an integration coupling operator in the respective domain can solve the problem. Cheers Edgar

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