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.

Computing current between two electrodes

Please login with a confirmed email address before reporting spam

Hi everyone,

I've set up a basic model with two electrodes in a block of tissue, with one electrode having a fixed potential boundary condition and the other set as ground. Using the Electric Currents (EC) module, I can obtain the electric potential distribution within the volume, but was wondering how to obtain the actual current flowing between the electrodes?

It's my first time using COMSOL so any help would be appreciated, thanks!

Best wishes, Ryan


2 Replies Last Post 09.02.2021, 17:52 GMT-5
AC Electrical engineering

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 14.12.2020, 10:00 GMT-5

The current density is one of the available variables in the module you are using. The current at the electrode is computed as the line (if in 2D) or surface (in 3D) integral of the current density (derived values/integration/etc.). Good luck Andrea

The current density is one of the available variables in the module you are using. The current at the electrode is computed as the line (if in 2D) or surface (in 3D) integral of the current density (derived values/integration/etc.). Good luck Andrea

Please login with a confirmed email address before reporting spam

Posted: 3 years ago 09.02.2021, 17:52 GMT-5

Ah got it, thanks so much Andrea!

Ah got it, thanks so much Andrea!

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.