Definition of the boundaries of the Poisson-Nernst-Planck equation

General
1

Hello everyone!

Could someone please help me with defining the boundary conditions and the formulation of this type of problem in FEniCS? In the documentation, I can’t find any examples that help with such a complex problem. I wonder if it is possible to solve my problem in FEniCS. Please, I need your help.

Please find my code attached.

Thank you!

2

You probably set the wrong permissions to the file, since it requires login.

3

Hello!
Sorry, I changed the link .
Thanks!!