Study of Three-Dimensional Viscous Flows in an Axial Compressor Cascade Including Tip Leakage Effects Using a SIMPLE-Based Algorithm

[+] Author and Article Information
M. Pouagare

Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC

R. A. Delaney

Computational Fluid Mechanics, Allison Gas Turbine Division, General Motors Corporation, Indianapolis, IN

J. Turbomach 108(1), 51-58 (Jul 01, 1986) (8 pages) doi:10.1115/1.3262024 History: Received January 17, 1986; Online November 09, 2009


A multisweep space-marching solver based on a modified version of the SIMPLE algorithm was employed to study the three-dimensional flow field through a linear cascade. Three cases were tested: one with moderate loading, one with high loading, and one with high loading and tip clearance. The results of the numerical simulation were compared with available experimental measurements, and the agreement between the two was found satisfactory. The numerical simulation provided insight into several important endwall flow phenomena such as the interaction between the leakage and passage vortices, the interaction between the leakage vortex and the wake, the effect of leakage flow and loading on losses and secondary kinetic energy, the suction side corner separation, and the blowing of this separation by the leakage flow.

Copyright © 1986 by ASME
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