COMSOL help

  • Thread starter simulator
  • Start date
Hi,

I am trying to solve the 4th order biharmonic PDE with COMSOL. I'm new to COMSOL and I have been able to draw the necessary 2D geometry for the set up. However, I am having trouble inputting setting up the necessary equations.

I've been following this tutorial: http://www.cct.lsu.edu/~neilan/Neilan/Comsol_Tutorials_files/Argyris.pdf

However, when I try the step on slide 9 of the tutorial to input the equation, the field just resets to the old value. I've been opening up other templates as well (such as the general coefficient in PDE modes) which are suppose to be for custom equations. However, it seems that these custom eqns are limited to second order PDEs, and I need to solve a 4th order PDE.

Any help on this would be much appreciated!
 

Want to reply to this thread?

"COMSOL help" You must log in or register to reply here.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top