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.

How to implement a boundary condition in solid-liquid interface?

Please login with a confirmed email address before reporting spam

Hello, I am trying to implement some boundary conditions in my model to simulate displacement currents "J" due to migration in an electric field. According to the literature, I have to implement the following transport of charge carriers boundary conditions ( Please see attached screenshot).

For example, for "p+", if the electric field multiplied by the normal vector is less than zero, the flux entering the solid should be zero. Otherwise, the flux should be nJ, where n is the outward normal vector from the liquid side, and J is the current flux given by upE, where u is the mobility, p is the charge density, and E is the electric field vector. I have been trying to implement this on the interface of the solid without success for at least 4 months. If anyone knows how to tackle this, it would be much appreciated



0 Replies Last Post 15 mars 2024, 19:35 UTC−4
COMSOL Moderator

Hello DG

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.