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Turbulence in plasma-induced hypersonic drag reduction

R. Appartaim, E.-D. Mezonlin, J. A. Johnson III
2002 AIAA Journal  
Using a pressure ruptured shock tube, an experimental study of the dynamics of shock waves in weakly ionized argon, krypton, xenon and neon glow discharge plasmas has been performed. For Mach numbers in the range 1.5 -3, our results show that there is an increase in the velocity of a shock wave when it makes a transition from a neutral gas to a weakly ionized plasma and the effect increases with increasing atomic weight. The observations indicate that the shock acceleration cannot be accounted
more » ... annot be accounted for by thermal effects. However, the use of turbulence models based on reduced kinetic theory and second order phase transitions suggests a consistent role for turbulence in plasma-induced hypersonic drag reduction. American Institute of Aeronautics and Astronautics To Vacuu m Pu m p Di ap hr ag m An ode Ca thode Pr essure Tr an sd uc er Res istor DC Pow er Su pply Plasma Mon och rom ato r Os ci ll os co pe Hi gh Pr essure Low Pr ess ure The rm oc ou pl e
doi:10.2514/3.15286 fatcat:2wwys3vnuvdrvkac2saxjmpwlm