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 The information provided may be out of date.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.

Imaginary energy density ?

Posted Jun 23, 2011, 2:29 p.m. EDT Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.1 0 Replies

James Rund
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi COMSOL experts,

after solving a electrostatic problem in 3D I am integrating the energy density (from the preset quantities) over a specific volume of my geometry.

What surprises me is that the resulting quantity is complex? Does COMSOL simply square the electric field, but does not take the multiplicaiton of E with E* where E* is the complex conjugate?

I find this a bit odd, but perhaps I don't understand what is going on.

thanks for advice,
j
0 Replies Last Post Jun 23, 2011, 2:29 p.m. EDT
COMSOL Moderator

Hello James Rund

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