Characterization of Thermal Arc Generator RB3 Flows by Laser Absorption Spectroscopy and Pitot Probe

概要

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The thermal arc generator RB3 flows were characterized by laser absorption spectroscopy and Pitot probe measurement. Firstly, translational temperature and flow velocity distributions in an argon flow were deduced from measured absorption profile of ArI 772.42 nm. The averaged specific enthalpy and plasma power for TPS test region was estimated as 3.72±0.48 MJ/kg, 1.77±0.68 kW, respectively. Next, an air flow was diagnosed using OI 777.19 nm line. The specific enthalpy on the axis was estimated from the deduced temperature, Mach number and thermo-chemical equilibrium assumption in the plenum. As a result, the specific enthalpy, the degree of dissociation in oxygen and nitrogen were estimated as 11.1±1.8 MJ/kg, 88.5 % and 3.8 %, respectively.
社団法人　高温学会,Department of Aeronautics and Astronautics, University of Tokyo,Institut für Raumfahrtsysteme, University of Stuttgart,Department of Advanced Energy, University of Tokyo,University of Hamburgの論文