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本文在讨论和分析了国外现有的运动激波与头激波斜相互作用的两大类实验方案的基础上,提出并实现了在双驱动激波管和激波风洞中形成运动激波与头激波斜相互作用的新方法.这种方法不仅可以获得双波(指运动激波与头激波,下同.)斜相互作用所需要的平面的运动激波,而且可以同时得到双波斜相互作用条件下试验模型表面瞬态压力曲线和流场照片.这种方法还可以用于研究在运动激波前有气流情况下,运动激波在尖劈或尖锥表面规则反射(Regular Reflection)与Mach反射(Mach Reflection)之间的转变.在测试技术方面,本文还提出了一种改进方法,用于测量运动激波的激波Mach数.
Based on the discussion and analysis of two major experimental schemes of the existing interaction between shock wave and head shock wave in foreign countries, this paper proposes and realizes the formation of shock wave in dual-drive shock tube and shock wave wind tunnel And the first shock wave oblique interaction method. This method can not only get the dual wave (referring to the shock wave and the first shock, the same below.) The plane of the shock wave needed for the interaction, but also can be double Transient pressure curves and flow field pictures of the experimental model under wave-oblique interaction can also be used to study the effect of the shock wave on the surface of a wedge or a sharp cone in the presence of airflow Reflection and Mach Reflection.In the aspect of testing technology, this paper also presents an improved method for measuring the shock Mach number of shock wave.