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An Experimental Study of Streamwise Vortices in a Compressor Cascade FREE

[+] Author Affiliations
Chen Fang, Chen Mao-Zhang, Jiang Hao-Kang

Beijing Institute of Aeronautics and Astronautics, Beijing, China

Paper No. 88-GT-137, pp. V001T01A056; 8 pages
doi:10.1115/88-GT-137
From:
  • ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Amsterdam, The Netherlands, June 6–9, 1988
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7918-4
  • Copyright © 1988 by ASME

abstract

An experimental study on the production and development of streamwise vortices in a compressor cascade is reported.

At four locations inside and one location outside the blade passage, the mean velocity components, three turbulent intensities and three Reynolds stresses were measured with a “x” hot wire probe. The results obtained describe the flow structure in the corner between the end-wall and blade suction surface in detail. Besides a passage vortex within the passage, there exist a shed corner vortex pair and a secondary vortex pair in the corner. The characteristics of two vortex pairs were different from that of the passage vortex.

The mechanism causing the shed corner vortex pair and secondary vortex pair and the effect of these vortices on the cascade losses are discussed.

Copyright © 1988 by ASME
This article is only available in the PDF format.

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