Error in symmetry

Please login with a confirmed email address before reporting spam

Hello,

I am modeling a spherical Helmholtz resonator on Comsol so I can find the resonance frequency by changing some parameters. I am using the acoustic module. To simplify my model, I used the quarter of the sphere (because of symmetry). Then in the physics part I added symmetry and chose the specific boundaries. In this case the resonance frequency changed in a range of 10 Hz. It is not the same anymore. What can I do in this case? I can't find my error!

Thank you in advance


1 Reply Last Post Sep 16, 2020, 7:46 AM EDT

Please login with a confirmed email address before reporting spam

Posted: 2 weeks ago Sep 16, 2020, 7:46 AM EDT
Updated: 2 weeks ago Sep 16, 2020, 7:46 AM EDT

Hello,

Is 10 Hz a large variation? If it is small, could it be due to the fact that the mesh is different? In that case, refining the meshes in both cases could reduce the discrepency.

Hello, Is 10 Hz a large variation? If it is small, could it be due to the fact that the mesh is different? In that case, refining the meshes in both cases could reduce the discrepency.

Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.