FEFLO - CFD, CAD, Tet Mesh Flow Solver, graphics The CFD software package that was used in this project has been developed for modeling of low speed incompressible and high-speed compressible fluid flow. It has been developed to operate virtually independent of computer platform or operating system. This software consists of the following modules: 1) a stand-alone CAD geometry modeling package, 2) an automatic mesh generation module for unstructured tetrahedra, 3) an adaptive mesh Euler / Navier-Stokes code for aerodynamic flow analysis, and 4) a post processing graphics code