激波马赫数 meaning in English

shock mach number

In this dissertation , the pulse jet style , the influence on the shock wave , the flow in the tube and the cooling effect was deeply studied theoretically and experimentally . the influence of the pulse jet style on the forming of shock wave and the shock wave intensity was explored . the initial disconnection style in oscillating tube vented and the initial disconnection breakdown was proposed by different pulse jet style
本文对脉动射流的型式及其对激波、管内流动及冷效应的影响进行了较系统的理论和实验研究,主要包括:探讨了脉动射流的型式对形成管内激波形成及激波强度的影响,给出了不同脉动射流的型式下振荡管开口端初始间断的类型,对初始间断进行了分解,导出了包含进气、排气参数及工质物性参数的管内入射激波马赫数mj的表达式,给出了管内激波形成的三种原因及其所对应的脉动射流型式和具体的工作状态。