涡轮导叶轴向弯曲对其气动性能影响的研究_三维粘流数值分析

近年来计算流体力学在叶轮机械中得了应用，在三维计算方法有了很大的进。与之同时，从学院式的研究到工业应用的过渡已经开始。中国科学院工程热物理研究所在最近二十年内致力于发展各种轮机械三维流动的计算方法。本文的目的是介绍作者的方法和应用它来研究分析一个典型的大长径比涡轮导向器气流流动的物理现象。本文给出了一些研究结果和建议。

A Study on the Axial Skewing Effect of Turbine Stator Blades on Their Aerodynamic Characteristics (Three-dimensional Viscous Flow Numerical Analysis

Recent years have seen the application of computational fluid mechnics to turbomachinery with a significant contribution being rendered to the three-dimensional computation method and the simultaneousinitiation of a transition from academic study to industrial use. Over the recent two decades the Institute of Enginereing Thermophysics nudef the Chinese Academy of Sciences had been engaged in the development of a variety of three-dimensional flow computational methods for turbomachinery. The present paper presents the method developed by the authors, its application in the study and analysis of the flow phenomena occurring in a typical turbine stator with a high aspect ratio, and the axial skewing effect on its aerdynamic characteristics. Also given are some study resultS and the authors suggestions.