The ADFC code is a computational fluid dynamics (CFD) C++ solver for incompressible viscous flow over 2D and 3D geometries. It uses finiteelement and the characteristic method on unstructured meshes to solve Navier-Stokes equations.
FeapUI gives a graphical easy-to-use interface to the fem (finiteelementmethod) programm FEAP by R.L. Taylor (www.ce.berkeley.edu/~rlt/). FeapUI runs on Linux/Unix and Windows with java. This gives you more "Feaping" and lesser maual reading.