Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Division by zero error in multiphysics model (piezo+acoustic)

Please login with a confirmed email address before reporting spam

Hi.

Attached to this post you can find an example of piezoelectric transducer.
First of all, I've created the geometry of the piezo transducer, and I covered it with a sphere of water. The spere is double-layered, to make a matching layer.

Then, I've set the boundary conditions, and for the piezo boundaries, I've set the normal acceleration in the acoustic module, using the acceleration from the piezo. for the mechanic model, I've set the pressure load of boundaries, using the pressure of the acoustic model.

When I studi the behavior for a single frequency, I got an error, and I don't know what the error means. Can you help me to solve this? Thanks in advantage

Daniele

PS: Comsol 4.0.0.982 on windows 7 64bit.


0 Replies Last Post Dec 20, 2010, 4:39 p.m. EST
COMSOL Moderator

Hello Daniele Lupo

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

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.