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本文主要是讨论说明气阀通道中非稳定流动影响的模型。作者发现气体质量惯性的影响是重要的。为使方程组易于处型,进行了适当的简化。为了说明惯性影响的数量级,对于简单的边界条件,给出了解析式。 二、稳定流动概念 我们可以将压缩机气阀中的稳态流动原理归纳为表1（不可压缩流动）。虽然方程 （2.1）、（2.2）、（2.3） 和（2.4）是非常简单的,但要寻求合适的排气系数CD和气体推力系数Cp,问题便产生了。实验可以给出结果,但若判断是否能够把从简单实
This article focuses on models that illustrate the effects of unsteady flow in the valve passage. The authors found that the impact of gas mass inertia is important. In order to make the system of equations easy to type, the appropriate simplification. To illustrate the magnitude of inertial effects, an analytical formula is given for simple boundary conditions. Second, the concept of steady flow We can compressor compressor valve steady flow principle is summarized in Table 1 (incompressible flow). Although equations (2.1), (2.2), (2.3) and (2.4) are quite simple, the problem arises in finding the appropriate exhaust coefficient CD and the gas thrust coefficient Cp. Experiments can give results, but if you can judge from simple and honest