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Eigenvalue prediction: Complex impedance

Posted 12 nov 2014, 15:28 GMT-5 0 Replies

Md Mehadi Hasan
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Hi,

I'm trying to predict the eigenvalues of a room for complex impedance boundary conditions. But COMSOL is giving me somewhat totally different from the analytic predictions. If I use a real value for impedance, then both analytic and COMSOL predictions are in harmony.

I don't understand what is the problem with complex valued impedance. Can anyone please suggest me any ideas to get rid of this problem?

Thanks,
Mehadi
0 Replies Last Post 12 nov 2014, 15:28 GMT-5
COMSOL Moderator

Hello Md Mehadi Hasan

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