排灌机械工程学报2026，Vol.44Issue(2)：109-116,8.DOI:10.3969/j.issn.1674-8530.24.0082
叶片进口边后掠对螺旋离心式航空燃油泵空化性能的影响
Effect of blade inlet edge sweep on cavitation performance of spiral centrifugal aviation fuel pump
摘要
Abstract
In order to investigate the influence of blade sweep angle on the cavitation performance of a fuel pump,a specific type of spiral centrifugal fuel pump was taken as the research object,and five impeller models with different sweep angles(θi=20°,40°,60°,80°,100°)were designed.Based on the RANS two-equation model and Zwart cavitation model,the internal flow field simulation was carried out by ANSYS CFX software,and the reliability of the numerical calculation method was veri-fied by comparing the numerical calculation results with the experimental results.The results show that the sweep angle and the relative cavitation coefficient NPSHr*have a cubic function relationship.Fur-thermore,NPSHr* shows a trend of decreasing and then increasing as the sweep angle increases.Under the premise that other design parameters remain unchanged,when the blade inlet edge sweep angle coefficient θ*is 0.32,the NPSHr*of the fuel pump is the minimum at 0.79,and the spiral cen-trifugal fuel pump exhibits the best anti-cavitation performance.To sum up,the blade sweep design can suppress the generation and development of cavitation bubbles of spiral centrifugal aviation fuel pumps.The research results provide a theoretical basis for the optimization of the design of the spiral centrifugal fuel pump.关键词
螺旋离心泵/空化性能/叶片进口边后掠角/空泡/空化系数Key words
spiral centrifugal pump/cavitation performance/blade inlet edge sweep angle/cavitation bubble/cavitation coefficient分类
农业科技引用本文复制引用
韩伟,郦飞翔,李仁年,谢文娟,强彦..叶片进口边后掠对螺旋离心式航空燃油泵空化性能的影响[J].排灌机械工程学报,2026,44(2):109-116,8.基金项目
国家自然科学基金资助项目(52269022,52179086) （52269022,52179086）
甘肃省自然科学基金资助项目(23JRRA788) （23JRRA788）
