A 3D surface and volumetric mesh generator for MATLAB/Octave
OpenCL support for GNU Octave
OpenNum lets you distribute solvers with a nice graphical interface
PySCeS Constraint Based Modelling
Biomolecular electrostatics software
Determine the bending moments, shear forces, axial forces and displace
Fortran library with the Abaqus user material subroutines UMAT/VUMAT
solves nonlinear Kohn-Sham equation for the neutral atom.
Solves one-electron Schrödinger equation, with SLEPc and PETSc
The incompressible Navier-Stokes equations solver in 2D domains
Yet Another Finite Element Method Solver
Advanced numerical instruments: adaptive meshing, FE methods, solvers