本文介绍一种计算喷射器的新方法。该方法的特点是,处在喷射过程中,所有能量损失(包括喷嘴、混合室和扩压段)是随着流动参数和几何参数的变化而变动。文中对喷射器流动特性进行了计算,所得到的计算值是与的测量值相当吻合。因此,该计算方法可作为喷射器设计的一个改进计算方法。 This article describes a new method of calculating ejectors. The characteristic of this method is that all the energy losses (including the nozzle, mixing chamber and diffuser section) during the injection process are changed with the flow parameters and geometric parameters. In this paper, the ejector flow characteristics are calculated, and the calculated values ​​are in good agreement with the measured values. Therefore, this calculation method can be used as an improved calculation method of injector design.