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Numerical and Experimental Investigation of Secondary Flow in a High Speed Compressor Stator FREE

[+] Author Affiliations
Y. Ohkita, H. Kodama

Ishikawajima-Harima Heavy Industries, Tokyo, Japan

O. Nozaki, K. Kikuchi, A. Tamura

National Aerospace Laboratory, Chofu, Tokyo, Japan

Paper No. 95-GT-229, pp. V001T01A063; 9 pages
doi:10.1115/95-GT-229
From:
  • ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Houston, Texas, USA, June 5–8, 1995
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7878-1
  • Copyright © 1995 by ASME

abstract

A series of numerical and experimental studies have been conducted to understand the mechanism of loss generation in a high speed compressor stator with inlet radial shear flow over the span. In this study, numerical simulation is extensively used to investigate the complex three-dimensional flow in the cascades and to interpret the phenomena appeared in the high speed compressor tests. It has been shown that the inlet radial shear flow generated by upstream rotor had a significant influence on the stator secondary flow, and consequently on the total pressure loss. Redesign of the stator aiming at the reduction of loss by controlling secondary flow has been carried out and the resultant performance recovery was successfully demonstrated both numerically and experimentally.

Copyright © 1995 by ASME
This article is only available in the PDF format.

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