NASA低速离心压气机时轮内部流动的数值研究  

NUMERICLE STUDY OF THE FLOW INSIDE THE NASA 'S LOW-SPEED CENTRIFUGAL COMPRESSOR IMPELLER

作　　者：席光[1] 王晓锋[1] 樊会元[1] 倪明玖[1] 

机构地区：[1]西安交通大学能动学院,陕西西安710049

出　　处：《工程热物理学报》2001年第2期188-191,共4页Journal of Engineering Thermophysics

基　　金：教育部优秀年轻教师基金资助项目!(1998[9])

摘　　要：本文采用一多功能流体动力学计算软件，详细计算分析了ＮＡＳＡ低速离心压气机叶轮内部的三维速度场。通过 与实验数据以及其它软件计算结果详细定量的对比分析，研究了ＣＦＤ软件预测叶轮内部流场的能力及存在的问题，提出 了进一步提高数值计算精度的建议。Based on a multifunctional CFD software, the three-dimensional velocity field within the impeller of NASA low-speed centrifugal compressor is computed in detail in this paper. Detailed quantitative analysis is then carried out through comparing the results with experimental data as well as the results from another CFD software. Moreover, the ability of CFD software to predict the flow field inside the impeller and the existing problems are studied. Suggestions are given to further improve numerical computation precision.

关 键 词：数值分析 离心压气机 叶轮 流动 NASA 

分 类 号：TH452.02[机械工程—机械制造及自动化]