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Updated: Jun 29, 2025

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
The cavitation characteristics of aerospace high-speed centrifugal pumps with different tip clearance
Wen-Xiong Chao1,2, Wang-Cheng Wang3, Wei Zhang3
1Xi'an Aeronautical University, No.259 on West Second Ring Road, Xi'an, 710077, Shaanxi Province, China. cwx3860605@126.com.
Abstract:
This study investigates the Tip Clearance Cavitation (TCC) characteristics of three different Tip Clearances (TC) (0.4, 0.6, 0.8) and five inlet negative pressure conditions Pj = (- 20-60)kPa to improve the reliability of the aerospace high-speed centrifugal pump during in-orbit operation, based on the premise of good agreement between the TC 0.6 test curve and the simulation performance curve. Under negative pressure and high-speed conditions, the variation gradient of cavitation characteristics with various inlet negative pressures is non-linear and has a sudden change, but the trend becomes stable after the inlet negative pressure drops to a certain stage. The tip clearance cavitation characteristics vary from the blade surface cavitation characteristics due to the difference in forces on both sides. This study is a proper starting point for the design of aerospace power pumps.
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