高速平板诱导轮的结构设计与分析

Geometry design and analysis of the high-speed rotational plate inducer

诱导轮是液体火箭发动机(LPRE)中重要的组成部分,它能有效地提高主泵的抽吸性能。首先介绍了LPRE诱导轮的几种典型结构型式,然后阐述了LPRE诱导轮的基本概念和设计原理,进一步推荐和分析了高速平板诱导轮几个重要结构参数的设计准则,最后按照设计方法设计了用于某液体火箭发动机的一台高速诱导轮,CFD计算表明它具有较好的扬程性能和抗汽蚀特性。

The inducer is a key component of the liquid propellant rocket engine （LPRE） , which can effectively raise the suction performance of the main pump. The basic types of LPRE inducer were introduced. The basic concept and design theory were then presented. Furthermore, the design criteria of some important geometry parameters of the high-speed rotational plate inducer were recommended and analyzed. Finally, a high-speed rotational inducer for a LPRE was designed by this method. The CFD results indicated it had a good head performance and cavitation characteristic.