压力恢复系统引射器工作效率工程估算

在与高能化学激光器配套的引射式压力恢复系统中 ,引射器作为一个关键部件 ,其工作效率对于整套系统有很大影响。本文结合工程实际 ,对引射器工作效率的工程计算方法进行了较为深入的研究 ,提出了合理假设。计算采用守恒方程组 ,考虑了在热力学特性上 ,引射气体和被引射气体有较大差别的实际情况 ,按照工程设计的要求 ,对引射器的工作效率进行了计算。通过对多组参数的计算和分析 ,得出了有关参数对引射器工作效率的影响规律。计算结果表明 :引射气体和被引射气体的速度参数、总压和环境压力的调整对于引射器的工作效率有着较大的影响。

Study on Ejector Efficiency Engineering Calculation in Pressure Recovery System

In the pressure recovery system of a high-energy chemical laser, the ejector is a very important equipment. Its efficiency influences all the system. In this paper, theory of the engineering calculation of the ejector efficiency is studied. The conservation equations are used. Since in an ejector, active and passive air has diffierent thermodynamic and physical constants. This influence must be considered in calculation. The results of the calculation of diffierent parameters show that some parameters have important influence. Some qualitative rules have got for engineering design.