Effect of guide vane outlet angle on pump performance and impeller radial force in an axial-flow heart pump

作     者：Liu Fufei Sang Xiaohu 刘复飞;Sang Xiaohu

作者机构：Sehool of Information Engineering Wuhan University of Technology Wuhan 430070 P.R. China） （ School of Meehatronies Engineering and Automation Shanghai University Shanghai 200072 P. R. China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2018年第24卷第2期

页      面：219-226页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 0836[工学-生物工程] 

基　　金：Supported by the National Natural Science Foundation of China(No.51574161) the Education Science Project of Young and Middle-aged Teachers of Universities in Fujian Province(No.JZ160396) 

主　　题：heart pump pump performance guide vane outlet angle radial force rotor-sta-tor interaction 

摘      要：To study the effect of guide vane outlet angle on pump performance and impeller radial force in an axial-flow heart pump, guide vane outlet angle/34 is considered to be 20°, 15°, 10°, 5° and 3° respectively. Based on ANSYS Fluent, numerical results of pump head and efficiency are validated by exper/ment results, in which Xanthan gum solutions are used with concentration of 0.06 wt. % as working fluid. Then, the effects of/34 on pump performance and impeller radial force are discussed, the errors of head and efficiency between test and simulation are within 5%. The results a/so indicate that the pump performance and efficiency are much better than those of other angles when guide vane outlet angle/34 is 10°, and the maximum variations in head and efficiency are 1.9% and 2.2%, respectively. With/34 increasing, the pulsation of radial force decreases firstly and then increases, when/34 is 10°, the minimum pulsation is 0. 0392N, which is about 80% of the maximum pulsation amplitude.