Investigations on the Flow Field in an Unshrouded Pump Impeller Geometry

被引：0

作者：

Sten Sieber ^{[1
]}

Friedrich Frhlig ^{[1
]}

Saban Caglar ^{[1
]}

Martin Gabi ^{[1
]}

机构：

[1] Fchgebiet Strmungsmaschinen, Karlsruhe Institute of Technology, Germany

来源：

Journal of Thermal Science | 2012年 / 21卷 / 02期

关键词：

unshrouded pump; tip clearance; helicity;

D O I：

暂无

中图分类号：

TH38 [各种用途];

学科分类号：

080704 ;

摘要：

Transient CFD simulations are performed to investigate the flow behaviour inside an unshrouded pump using the SAS method. Two blade designs are compared at two different tip clearances and the results are validated by measurements. The detected vortex structure is visualized by the normalized helicity, further discussed regarding its development and behaviour and finally implicated to the efficiency of the two different blade designs.

引用

页码：136 / 144

页数：9

共 5 条

[1] Rotor-Tip Leakage: Part I – Basic Methodolgy. T.C. Booth et al. Journal of Engineering . 1982
[2] Effect of blade tip configu- ration on tip clearance loss of a centrifugal impeller. M. Ishida,H. Ueki,Y Senoo. Transactions of the ASME . 1990
[3] The Role of Tip Leakage Vortex Breakdown in Compressor Rotor Aerodynamics. M Furukawa,M Inoue,k. Saiki,K. Yamada. Journal of Turbomachinery . 1999
[4] Evaluation of the SST-SAS Model: Channel Flow, Asymmetric Diffuser and Axi-symmetric Hill. L. Davidson. European Conference on Computational Fluid Dynamics . 2006
[5] Vortex breakdown: observations and explanations. Escudier,M. Progr. Aerospace Sci . 1988

← 1 →