NASA has made available many software applications that it developed under an open source license agreement. For example, STARS is finite element software used for structural analysis, heat transfer, linear aerodynamics, CFD , and controls engineering. It has been used at NASADryden Flight Research Center for analysis of the X-29A, F18 HARV/TVCS, B-52/Pegasus, Generic Hypersonics, NASP, SR-71, and the high speed civil transport (HSCT), among others.
View the software available on the NASA web site.