poisson
FENICS Solution of Poisson Equation

poisson, a FENICS script which uses the finite element method to solve a version of the Poisson equation over the unit square, adapted from the FENICS tutorial by Langtangen and Logg.

Note that I have installed FENICS using Docker, and so to run this script I issue the commands:

1. cd $HOME/fenicsproject/poisson
2. fenicsproject run
3. python3 poisson.py
4. exit

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Reference:

1. Hans Petter Langtangen, Anders Logg,
   Solving PDEs in Python - The FEniCS Tutorial Volume 1.

Source Code:

• poisson.py a script which sets up and solves the problem.
• poisson.txt the output file.
• poisson_mesh.png a plot of the mesh.
• poisson_solution.png a contour plot of the solution.