Hypersonic vehicles re-entering Earth's atmosphere with orbital velocities generate gas flows with significant thermo-chemical non-equilibrium. Detailed kinetics of chemical reactions at such conditions is still not well understood but it may affect vehicle's thermal loads, aerodynamic moments and thermal radiation. This work assesses the Total Collision Energy (TCE) and the Kuznetsov-based state specific (KSS) chemical reaction models at pressures between 1 and 50 torr and velocities between 4 and 10 km/s in order to identify best test conditions for validating the models. Hypersonic flows at such conditions can be studied at the hypervelocity impact range facilities.
Date of this Version
Kulakhmetov, Marat; Bondar, Yevgeniy A.; Ivanov, Mikhail S.; and Alexeenko, Alina A., "Assessment of high-enthalpy air chemistry models for hypervelocity ground-based experiments" (2012). School of Aeronautics and Astronautics Faculty Publications. Paper 48.