IMECH-IR  > 高温气体动力学国家重点实验室
Hypervelocity Test with a Detonation-Driven Expansion Tube
Hu ZM(胡宗民); Zhou K(周凯); Peng J(彭峻); Jiang ZL(姜宗林)
Source Publication31st International Symposium on Shock Waves 2
2019-03-22
Pages261-267
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.
ISBN978-3-319-91017-8
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80807
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Hu ZM,Zhou K,Peng J,et al. Hypervelocity Test with a Detonation-Driven Expansion Tube[C]31st International Symposium on Shock Waves 2,2019:261-267.
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