火箭推进2018，Vol.44Issue(6)：86-90,5.
三叶片两级诱导轮的气蚀性能研究
Study on cavitation performance of a two-stage inducer with three-blades
李欣 1肖立明 1刘畅 1胡声超 1李家文 2王珏3
作者信息
- 1. 北京宇航系统工程研究所, 北京 100076
- 2. 北京航空航天大学 宇航学院, 北京 100191
- 3. 中国运载火箭技术研究院, 北京 100076
- 折叠
摘要
Abstract
In order to study the cavitation performance of a two-stage inducer with three-blades, the hydraulic and cavitation performance in two-stage inducer were obtained through experiments. In addition, the cavitation development was observed with visualization tests, and the pressure fluctuation inside the inducer passage was investigated by Fast Fourier Transformation and compared with single-stage inducer. The results show that the two-stage inducer can improve the cavitation performance by reducing the incipient cavitation number and decreasing the intensity of synchronous rotating cavitation. However, under the conditions of design flow Qdand 1. 1 Qd, a radial instability with a frequency of 21 Hz occurred in the two-stage inducer.关键词
两级诱导轮/气蚀性能/回流/同步旋转气蚀Key words
two-stage inducer/cavitation performance/backflow/synchronous rotating cavitation分类
航空航天引用本文复制引用
李欣,肖立明,刘畅,胡声超,李家文,王珏..三叶片两级诱导轮的气蚀性能研究[J].火箭推进,2018,44(6):86-90,5.
