The Effect of Reynolds Number and Turbulence Intensity on the Performance of a Compressor Cascade with Prescribed Velocity Distribution-Reference-Cited by-同舟云学术

The Effect of Reynolds Number and Turbulence Intensity on the Performance of a Compressor Cascade with Prescribed Velocity Distribution

Published:1977-06 Issue:3 Volume:19 Page:93-100
ISSN:0022-2542
Container-title:Journal of Mechanical Engineering Science
language:en
Short-container-title:Journal of Mechanical Engineering Science

Author:

Citavy J.¹,Norbury J. F.²

Affiliation:

1. Research Engineer, National Institute for Machine Design, Bechovice, Czechoslovakia

2. Department of Mechanical Engineering, The University of Liverpool. Fellow of the Institution

Abstract

Experimental results are presented on the effect of Reynolds number ( Re) and turbulence intensity ( Tu) on the aerodynamic performance of a PVD compressor cascade at design incidence. The pressure distribution, outlet flow angle and losses were measured within the ranges Re = 0.6 times 105 to 2 times 105 and Tu = 0.35 to 4.4 per cent. In some experiments, the effect of axial velocity ratio ( AVR) was investigated. A substantial effect of the Reynolds number and turbulence intensity on the growth and bursting of the separation bubble was observed, with consequent effects on the aerodynamic performance of the cascade. The bursting of the bubble also gave rise to a hysteresis effect with Reynolds number.

Publisher

SAGE Publications

Subject

General Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/JMES_JOUR_1977_019_022_02

Reference5 articles.

1. Approximate Calculation of the Laminar Boundary Layer

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