Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor
Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor
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DOI：
10.1115/gt2009-59808
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
J. Bourgeois;R. Martinuzzi;D. A. Roberts;E. Savory;C. Zhang
中科院分区：
文献类型：
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作者：
J. Bourgeois;R. Martinuzzi;D. A. Roberts;E. Savory;C. Zhang
复杂的湍流流场对湍流模拟提出了许多挑战。在此，全尺寸的航空发动机离心压气机的激光多普勒测速（LDV）测量的结果被用来验证典型的设计模拟结果，使用混合平面和k-e，SST，或RSM-SSG湍流闭合模型。模拟结果与LDV测量结果基本吻合，但在近壁区差异最大：预测的边界层较厚，流动扩散性较强。讨论了使用不同封闭件的模拟结果之间的重要差异。版权所有© 2009 by ASME
The complex flow field in turbomachinery poses numerous challenges for turbulence modeling. Herein, results of Laser Doppler Velocimetry (LDV) measurements of a full-scale aeroengine centrifugal compresser are used to validate typical design simulation results using a mixing plane and the k-e, SST, or RSM-SSG turbulence closure models. Generally good agreement between simulation results and LDV measurements was found. The largest discrepancies were found in the near-wall regions: the predicted boundary layers were thicker and the flow more diffusive than measured. Important differences between the simulation results using different closures are discussed.Copyright © 2009 by ASME