IMECH-IR  > 高温气体动力学国家重点实验室
The Role of Three-Dimensional Shock Wave Interaction in the Complex Hypersonic Heating
Wang C(王春); Xiang GX(项高翔); Jiang ZL(姜宗林); Li XD(李旭东); Shi CM(师曾敏)
Source Publication31st International Symposium on Shock Waves 2
Conference Name31st International Symposium on Shock Waves
Conference Date2017-07-9~14
Conference PlaceNagoya, Japan
AbstractA shock-expansion tube/tunnel is a ground-based test facility to generate hypervelocity test flows for the study of atmospheric reentry physics. Such a high enthalpy test flow features thermochemically non-equilibrium which may lead to critical difficulties in flow diagnostics and measurements. In addition, the test time of such an impulse facility is extremely short which implies a requirement of transducers with high-frequency response capability for model tests or flow diagnostics. In the present work, computations for non-equilibrium reacting flow are conducted to diagnose the key flow parameters and evaluate the test flow for facility upgrading. A conic nozzle is appended to the original facility and to obtain a larger test section and larger Mach numbers. Further experiments are conducted to visualize the overall flow structures over the test models by self-illumination of radicals at high-energy states post strong shock waves. The heat flux at the stagnation point is measured with specially designed thermal couples.
Document Type会议论文
Recommended Citation
GB/T 7714
Wang C,Xiang GX,Jiang ZL,et al. The Role of Three-Dimensional Shock Wave Interaction in the Complex Hypersonic Heating[C]31st International Symposium on Shock Waves 2,2019:905-910.
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