径向无叶扩压器内三维湍流边界层分离点的计算Calculation of separation point of Three-Dimensional Turbulent Boundary-Layers in Radial Vaneless Diffusers.
窦华书
Dou Huashu;
摘要(Abstract)：
依据三维边界层理论,提出了一个计算径向无叶扩压器内三维湍流边界层分离点的简单近似方法;并利用此方法计算了不同扩压器进口条件下的边界层分离点的位置的变化规律;在此基础上,讨论了在某些条件下离心式压缩机无叶扩压器内发生的旋转失速现象及由此导致的离心式压缩机的喘振机理。
This paper proposes a simple analytical method for calculating the separation point of three-dimensional turbulent boundary-layers in radial vaneless diffusers. Some calculated results for various inlet flow conditions are supplied. Then, the mechanism for rotating stall occuring in vaneless diffusers and surge in centrifugal compressors is discussed.
关键词(KeyWords)：
无叶扩压器;三维湍流边界层;分离点;旋转失速;喘振
基金项目(Foundation):
作者(Authors):
窦华书
Dou Huashu;
参考文献(References)：
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