基于仿生翼型喷水推进泵叶轮的空化特性  

Cavitation Characteristics of Impeller of Water Jet Propulsion Pumps Based on Bionic Airfoil

作　　者：苏晓珍 栗文静 解文辰 宋飞 常海燕 王璐 SU Xiaozhen;LI Wenjing;XIE Wenchen;SONG Fei;CAHNG Haiyan;WANG Lu(City University of Hefei, Hefei 230001, China;Hefei Hengda Jianghai Pump Co. Ltd., Hefei 230001, China)

机构地区：[1]合肥城市学院,安徽合肥230001 [2]合肥恒大江海泵业股份有限公司,安徽合肥230001

出　　处：《青岛农业大学学报（自然科学版）》2022年第2期147-152,共6页Journal of Qingdao Agricultural University(Natural Science)

基　　金：横向课题“水泵水力设计和性能预测软件技术成果转化”(2021040511)。

摘　　要：基于仿生学原理开展喷水推进泵内部空化流动特性研究。采用数值模拟与模型泵试验相结合的方法,将仿生翼型与两种经典的NACA4410翼型、791翼型进行比较,探寻不同翼型喷水推进泵叶轮的水力特性。结果表明:仿生翼型泵汽蚀余量最小,叶片上气泡量和气泡覆盖面积最少,抗空化性能最好。仿生翼型模型叶轮试验测试结果与数值模拟结果相对误差较小,满足数值模拟计算误差要求。说明仿生翼型在喷水推进泵模型优化上具有一定应用价值,对后续的研究具有重要的指导意义。Based on the principle of bionics,the research on the internal cavitation flow characteristics of water jet propulsion pump was carried out.With the method of combining numerical simulation and model pump test,the bionic airfoil was compared with two classic NACA4410 airfoils and 791 airfoils to explore the hydraulic characteristics of water jet propulsion pump impellers of different airfoils.The results showed that the net positive suction head of the bionic airfoil pump was the smallest,the amount of bubbles on the blade and the coverage area of the bubbles were the lest,and the anti-cavitation performance was the best.The relative error between the experimental results and the numerical simulation results of the bionic airfoil model impeller was small,which met the error requirements of the numerical simulation calculation.It shows that the bionic airfoil has a certain application value in the optimization of water jet propulsion pump model,and has important guiding significance for the follow-up research.

关 键 词：仿生翼型 空化 喷水推进 模型泵试验 

分 类 号：U661.31[交通运输工程—船舶及航道工程]