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 The information provided may be out of date.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.

Global evaluation

Please login with a confirmed email address before reporting spam

Hi,

I am trying to evaluate a surface average of potential (voltage) over a surface.

I do Definitions - model couplings - average and then list the surfaces over which I need to calculate the average.

Then under Definitions - Variables, I define Volt = aveop1(V)

Then under Results - Derived Values - Global evaluation I type Volt and click evaluate and I get the following error message.

- Variable: Volt
- Global scope:
Failed to evaluate expression.
- Expression: real(Volt)
Failed to evaluate expression.
- Expression: real(Volt)

Can someone explain why this is not working. I even tried mod1.Volt and its still giving me error

--
Ram Balachandran

0 Replies Last Post Nov 20, 2013, 7:39 p.m. EST
COMSOL Moderator

Hello Ram B

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.