TY - GEN
T1 - Modeling of radiation events from a side jet atmospheric interaction at high altitudes
AU - Zheng, Li
AU - Jiaqiang, Zhong
AU - Levin, Deborah A.
PY - 2006/12/21
Y1 - 2006/12/21
N2 - Highly nonequilibrium radiation transitions from electronically excited states generated by collisions of atomic oxygen with reaction control system thruster plumes is modeled for different altitude and vehicle velocity conditions. The flow field results are obtained using a Navier-Stokes solver to obtain the flow inside the nozzle and the direct simulation Monte Carlo method is used to simulate the chemically reacting, three-dimensional plume-atmospheric interaction. The frequency of radiation events are compared for two types of overlay methods and with direct simulation in DSMC. The distribution function for collisional relative velocities is explored and used to interpret the sensitivity of the number of radiation events to free stream altitude, temperature, velocity, and to the radiation mechanism activation energy.
AB - Highly nonequilibrium radiation transitions from electronically excited states generated by collisions of atomic oxygen with reaction control system thruster plumes is modeled for different altitude and vehicle velocity conditions. The flow field results are obtained using a Navier-Stokes solver to obtain the flow inside the nozzle and the direct simulation Monte Carlo method is used to simulate the chemically reacting, three-dimensional plume-atmospheric interaction. The frequency of radiation events are compared for two types of overlay methods and with direct simulation in DSMC. The distribution function for collisional relative velocities is explored and used to interpret the sensitivity of the number of radiation events to free stream altitude, temperature, velocity, and to the radiation mechanism activation energy.
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M3 - Conference contribution
AN - SCOPUS:33845527295
SN - 1563478153
SN - 9781563478154
T3 - Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
SP - 2215
EP - 2253
BT - Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
T2 - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
Y2 - 5 June 2006 through 8 June 2006
ER -