叶片进口角对汽车冷却水泵汽蚀特性的影响  

Effect of Blade Inlet Angle on the Cavitation Characteristics of Automotive Cooling Water Pumps

作　　者：赵英汝 柏宇星 马新宇 丁清琳 许丽娇 臧利国 ZHAO Yingru;BAI Yuxing;MA Xinyu;DING Qinglin;XU Lijiao;ZANG Liguo(School of Automobile and Rail Transit,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院汽车与轨道交通学院,南京211167

出　　处：《机械工程师》2025年第4期78-81,共4页Mechanical Engineer

基　　金：江苏省大学生实践创新训练计划项目(202311276113Y);南京工程学院科研基金资助项目(CKJA202205)。

摘　　要：为了提高汽车冷却水泵的抗汽蚀性能,对汽车冷却水泵进行了设计及优化。基于CFD方法对汽车冷却水泵外特性、流场分布和汽蚀特性进行了研究。研究结果表明,设计工况点的扬程为1.35 m,效率为83%。在各流量工况下,流场及压力场分布较为均匀。在27°和17°两种叶片进口角形式下,角度越小,抗汽蚀性能越优异。该研究结果可为汽车冷却水泵的设计提供理论和设计指导。To improve the anti-cavitation performance of automotive cooling water pump,this paper carries out the design and optimization of the automotive cooling water pump.Based on CFD method,the external characteristics,flow field distribution and cavitation characteristics of the cooling water pump are studied.The results show that the head is 1.35 m and the efficiency is 0.83 at the design working point,and the flow field and pressure field distribution are more uniform at each flow rate.In the case of 27°and 17°blade inlet angles,the smaller the angle,the better the anti-cavitation performance.The results of this study can provide theoretical guidance and design guidance for the design method of automotive cooling water pump.

关 键 词：汽车冷却水泵 叶片进口角 汽蚀 

分 类 号：U464.13[机械工程—车辆工程]