轴流叶轮机械三维非定常粘性流动数值分析  

NUMERICAL ANALYSIS OF 3D UNSTEADY VISCOUSFLOW IN AXIAL TURBOMACHINERY

作　　者：刘前智[1] 周新海[1] 

机构地区：[1]西北工业大学七系,西安710072

出　　处：《工程热物理学报》1999年第6期703-706,共4页Journal of Engineering Thermophysics

基　　金：航空科学基金

摘　　要：１前言叶轮机内部流动的数值计算方法一般都是基于转子与静子结构相互无关的定常流动假设，这种假设实际上是认为转子叶排与静子叶排相距足够远，以至于相互之间互不干扰。事实上，叶轮机中的非定常性是其固有的，转子叶排与静子叶排相距很近，转子叶排的高速旋转、上游叶...The numerical analysis of three dimensional unsteady viscous flow caused by rotor/statorinteraction in axial transonic turbomachineries was carried out in this paper. The high resolution time-marching finite difference solution of Navier-Stocks equations was made withNND scheme. Decreasing the CPU time, LU-SGS implicit method was used to calculate theinitial steady flow for unsteady flow computation. The numerical results for the first stageof a transonic compressor with this method show that the unsteady effect introduced by rotor/stator interaction and its influences on flow in turbomachinery was predicted effectively.

关 键 词：数值分析 非定常 粘性流动 轴流 叶轮机械 

分 类 号：TB126[理学—工程力学]