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粘性相互作用对高焓激波风洞实验段自由流静压测量影响的分析
引用本文:曾明,冯海涛,林贞彬,瞿章华.粘性相互作用对高焓激波风洞实验段自由流静压测量影响的分析[J].实验流体力学,2006,20(1):1-4.
作者姓名:曾明  冯海涛  林贞彬  瞿章华
作者单位:中国科学院力学研究所高温气体动力学重点实验室,北京,100080
基金项目:国家自然科学基金资助项目(90205027,10472125)
摘    要:通过理论分析、实验测量和数值模拟,研究高超声速粘性相互作用对实验段自由流静压测量的影响.研究表明:由于粘性相互作用,高焓激波风洞实验段平板静压测量值远高于实际自由流静压.在热化学非平衡流情况下,经典的粘性相互作用参数和经验公式具有局限性.

关 键 词:高超声速流    粘性相互作用    高焓激波风洞    实验测量
文章编号:1672-9897(2006)01-0001-04
收稿时间:2005-03-04
修稿时间:2005-07-27

Analysis of viscous effects on measurement of free stream pressure in high enthalpy shock tunnel test section
ZENG Ming,FENG Hai-tao,LIN Zhen-bin,QU Zhang-hua.Analysis of viscous effects on measurement of free stream pressure in high enthalpy shock tunnel test section[J].Experiments and Measur in Fluid Mechanics,2006,20(1):1-4.
Authors:ZENG Ming  FENG Hai-tao  LIN Zhen-bin  QU Zhang-hua
Institution:1. LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; 2. College of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073,China
Abstract:Hypersonic viscous interaction effects on measurement of free stream pressure in test section are studied through theoretical analysis,experiment measurement and numerical simulation.The results show that the pressure value measured at plate probe is much higher than that of free steam in high enthalpy shock tunnel test section.The classical viscous interaction parameter and experiential formulae are limitative in thermochemical nonequilibrium flow.
Keywords:hypersonic flow  viscous interaction  high enthalpy shock tunnel  experiment measurement
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