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.

Nonlinear conductivity

Xavier Granados ICMAB.CSIC/Applied Superconductivity, Electrical engineering applications

Please login with a confirmed email address before reporting spam

The below post is related to an archived discussion


Is it possible define lon linear conductivity (sigma(J)) in electrical current modulus? I tryed direct definition of sigma(J) but the program does not recognise J or Jc or Je or normJ neither Jx or Jy that actualy are recognised when solving a linear problem. I am trying to solve a 3D ec problem .

Thanks


1 Reply Last Post May 7, 2021, 3:56 p.m. EDT
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 3 years ago May 7, 2021, 3:56 p.m. EDT
Updated: 3 years ago May 7, 2021, 4:08 p.m. EDT

Hello Xavier,

In the ec physics, COMSOL solves for V and defines J based on sigma and V. You would be creating a circular definition by defining sigma in terms of J. Instead, define sigma in terms of V and its derivatives.

Best,

Jeff

-------------------
Jeff Hiller
Hello Xavier, In the ec physics, COMSOL solves for V and defines J based on sigma and V. You would be creating a circular definition by defining sigma in terms of J. Instead, define sigma in terms of V and its derivatives. Best, Jeff

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.