|Table of Contents|

Study on cavitation performance of a two-stage inducer with three-blades(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2018年06期
Page:
86-90
Research Field:
测控与试验
Publishing date:

Info

Title:
Study on cavitation performance of a two-stage inducer with three-blades
Author(s):
LI Xin1; XIAO Liming1; LIU Chang1; HU Shengchao1; LI Jiawen2; WANG Jue3
1.Beijing Astronautical Systems Engineering Institute, Beijing 100076, China; 2.School of Astronautics, Beihang University, Beijing 100191, China; 3.China Academy of Launch Vehicle Technology, Beijing 100076, China
Keywords:
two-stage inducer;  cavitation performance;  backflow;  synchronous rotating cavitation
PACS:
V434-34
DOI:
-
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 Qd and 1.1 Qd, a radial instability with a frequency of 21 Hz occurred in the two-stage inducer.

References:

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Last Update: 2018-12-25