Research activity in the aerothermodynamics branch at the NASA Ames Research Center is reviewed. Advanced concepts mission studies relating to the next generation aerospace aerospace transportation systems are summarized and directions for continued research identified. Theoretical and computational studies directed at determining flowfields and radiative and convective heating loads in real gases are described. Included are Navier-Stokes codes for equilibrium and thermo-chemical nonequilibrium air. Experimental studies in th 3.5 foot hypersonic wind tunnel, the ballistic ranges and the electric arc driven shock tube are described. Tested configurations include generic hypersonic aerospace plane configurations, aeroassisted orbital transfer vehicle shapes and Galileo probe models.


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