1. ALBERTA-FEM.
http://www.alberta-fem.de/
2. FEM4FSI/CFEM (Finite element method for fluid structure interactions - core library).
http://marian.fsik.cvut.cz/svacek/cfem
3. COMSOL multiphysics modeling software.
www.comsol.com/
4. deal.II (an open source finite element library).
http://www.dealii.org/
5. FEniCS Project.
http://www.fenicsproject.org/