离心式叶轮内部湍流及出口“射流尾迹”结构的成因分析

推进技术 ›› 2000, Vol. 21 ›› Issue (1): 45-48.

离心式叶轮内部湍流及出口“射流尾迹”结构的成因分析

赖焕新,康顺,吴克启

中国科学院工程热物理研究所!北京100080;中国科学院工程热物理研究所!北京100080;华中理工大学动力工程系!湖北武汉430074

发布日期:2021-08-15
基金资助:
国家自然科学基金资助 !( 5 98760 4 2 )

Internal turbulent flow and generation of “jet wake”structure at outlet of a centrifugal impeller

Inst of Engineering Thermophysics, Academia Sinica ,Beijing 100080,Chian;Inst of Engineering Thermophysics, Academia Sinica ,Beijing 100080,Chian;Dept of Power Engineering, Huazhong Univ of Science and Technology,Wuhan 430074, Chian

Published:2021-08-15

摘要/Abstract

摘要： 使用压力修正算法及kε湍流模式求解Reynolds时均的NS方程,数值分析了离心式压气机叶轮内部湍流流动及叶轮出口“射流尾迹”结构的形成过程,计算与实验结果的比较表明,二次流对低能流体的输运是形成射流尾迹结构的主要原因。

关键词: 离心式压气机;叶轮;湍流;射流尾迹+;数值模拟

Abstract: Pressure correction algorithm and Reynolds equations with k ε turbulence model for closure were applied in the numerical study of internal turbulent flow and the generation of “jet wake” structure at outlet of a centrifugal impeller Comparisons between numerical and experimental results show that the main reason for the generation and formation of “jet wake”structure is the transport of fluids with low energy by the secondary flow

Key words: Centrifugal compressor;Impeller;Turbulent flow;Jet wake structure +;Numerical simulation

赖焕新,康顺,吴克启. 离心式叶轮内部湍流及出口“射流尾迹”结构的成因分析[J]. 推进技术, 2000, 21(1): 45-48.