NASA低速离心压气机叶轮内部流动的数值研究

工程热物理学报 , 2001, 22(2): 188-191.

NASA低速离心压气机叶轮内部流动的数值研究

席光 ^1, , 王晓锋 ^2, , 樊会元 ^3, , 倪明玖 ^4,

1.西安交通大学能动学院,

2.西安交通大学能动学院,

3.西安交通大学能动学院,

4.西安交通大学能动学院,

基金项目: 教育部高校骨干教师资助计划(1998［9］)

关键词：数值分析 , 离以压气机 , 变工况

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

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, thethree-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 sof ware to predict the flow field inside the impeller and the existing problems are studied. Suggestions are given to further improve numerical computation precision.

参考文献

[1]	Hathaway M D et al.Laser AnemometerMeasurements of the Three-Dimensional Rotor Flow Field inthe NASA Low-Speed Centrifugal Compressor[R].NASA TP-3527,1995.
[2]	Chriss R M et al.Experimental and ComputationalResults From the NASA Lewis Low-Speed CentrifugalImpeller al Design and Part-Flow Conditions[J].Journal of Turbomachinery,Transactions of the ASME,1996,118:55-65.
[3]	M. D. Hathaway;J. R. Wood .Application of a multi-block CFD code to investigate the impact of geometry modeling on centrifugal compressor flow field predictions[J].Journal of turbomachinery,1997(4):820-830.
[4]	席光;王尚锦.半开式离心压气机叶轮三维湍流场数值分析[J].西安交通大学学报,1997(05):91-96.

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