dolfin team mailing list archive

[Kristen Kaasbjerg <cosby@xxxxxxxxx>]

Hi dolfin users

I am trying to use dolfin for the following simple
electrostatic problem:
- finding the electrostatic potential in a domain composed
 of two subdomains with different dielectric constants.
 This amounts to solving Laplace equation with appropriate
  BC's.

One thing that I cannot figure out how to do is to tell dolfin
that I have 2 subdomains and on the internal boundary between
these two domains, the normal derivative of the potential has
a discontinuity given by the difference between the dielectric
constants.
Could anyone give me a hint of how to approach this problem
with dolfin ? I am relatively unexperienced to FEM so a nice
reference would also be welcome.

Regards
Kristen