关键词: 高超音速流;炮风洞;探头;压力测量

Abstract: By refering to experimental results of hypersonic and supersonic static probes developed during the past 40 years in the world, several types of hypersonic static probes were designed and tested, two of whichwere developed. They can be used to accurately measure ststic pressures of hypersonic flow which has oaly useful workiag time of 30ms. By use of new types of static probes, the ratio of measured static pressure to the free-strema static pressure ps, m/ps, ∞ = 1.009, and the ratio of Mach number M∞, m/M∞ = 0.993. The experiments were made in the Hypersonic Gun Tunnel of UTIAS in Canada. The flow properties of the gun tunnel are as following: total pressure of free-stream pt,∞ = 25.5MPa,total temperature Tt,∞= 1000K, Reynolds number Re = 3.2 ×107/M, ReD = 34,000-52,800, based on probe D.Now the new types of hypersonic static probe are successfully used in the project of "The Experimental Investigation of Deve-lopmens of Hypersonic Flow in a Pipe" in UTIAS.

Key words: Hypersonic flow;Gun tunnel;Probe;Pressure measurement