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Large Acoustic Problem - Convergence Issues at high frequency range

Posted May 28, 2022, 9:22 a.m. EDT Acoustics & Vibrations 1 Reply

Vahid Ebrahimzade
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Hello all

I am working on a COMSOL model in pressure acoustic module, where i am performing an eigenfrequency study. I have monopole source (coupled) as well as a few interior impedance. The simulation converges in range below 3k Hz, however over 3 k Hz it does not. What can i do to solve this issue? Thanks

I have already tried Shifted Laplace optioin using FGMRES solver, but no success.

1 Reply Last Post May 28, 2022, 9:12 p.m. EDT
Robert Koslover Certified Consultant
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Posted: 2 years ago May 28, 2022, 9:12 p.m. EDT

Just a wild guess here, but consider modifying your mesh (to be finer) and/or the discretization level of your elements.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Just a wild guess here, but consider modifying your mesh (to be finer) and/or the discretization level of your elements.

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