How can I automatically extract normalized Eigen function in COMSOL?

12 December 2014 1 3K Report

I have noticed that COMSOL does not give me normalized eigenvalue when I tried to solve 1D/Mathematics/Coefficient Form PDE/Eigenvalue.

should I manually normalize the Eigenfunction?

How can I do that?

Vahid Mosallanejad

I got the answer. With the following steps, the normalized Eigen function can be achieved:

1- Define the integration operator ("intop1") from: Model/Definitions/Model Coupling and select whole domain

2- Define a variable like u_nor=u/(sqrt(intop1(u^2)))

3- From Result/Derived values/Gobal Evaluation put intop1(u_nor^2) to make sure that for each Eigen values the result is 1

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