Menu

Discussion Forum

New Discussion
Filter

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 The information provided may be out of date.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.

Predefined announced variables give zero results

Posted Dec 8, 2015, 5:46 p.m. EST Fluid & Heat, Acoustics & Vibrations, Microfluidics, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers, Structural Mechanics Version 4.3 0 Replies

Badri Suhaini
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Dear All,

I am working on the formation of ultrasonic-standing wave using a piezoelectric device acting on a fluid domain which contains suspended particles that is surrounded by PMMA walls.

I have 3 domains and 4 physics:
Transducer domain - piezoelectric device physics
PMMA domain - structural mechanics physics
Fluid domain - pressure acoustics + euler model physics

On the boundary load condition of PMMA wall structural mechanics I used an acoustic load per unit area (acpr/pam1).
On the normal acceleration boundary condition, I used Acceleration (solid/lemm1).

While computing it, it gave me zero results, why is that?

Thanks.
0 Replies Last Post Dec 8, 2015, 5:46 p.m. EST
COMSOL Moderator

Hello Badri Suhaini

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.

Suggested Content