The effect of wake induced structures on compressor boundary-layers


Wheeler, Andrew P.S., Miller, Robert J. and Hodson, Howard P. (2006) The effect of wake induced structures on compressor boundary-layers In ASME Turbo Expo 2006: Power for Land, Sea, and Air. Volume 6: Turbomachinery, Parts A and B. American Society of Mechanical Engineers., pp. 1875-1885. (doi:10.1115/GT2006-90892).

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Description/Abstract

The interaction of a convected wake with a compressor blade boundary-layer was investigated. Measurements within a single-stage compressor were made using an endoscopic PIV system, a surface mounted pressure transducer, hotfilms and hotwire traverses, along with CFD simulations. The wake/leading-edge interaction was shown to lead to the formation of a thickened laminar boundary-layer, within which turbulent spots formed close to the leading-edge. The thickened boundary-layer became turbulent and propagated down the blade surface, giving rise to pressure perturbations of 7% of the inlet dynamic head in magnitude. The results indicate that wake/leading-edge interactions have a crucial role to play in the performance of compressor blades in the presence of wakes.

Item Type: Conference or Workshop Item (Paper)
Digital Object Identifier (DOI): doi:10.1115/GT2006-90892
ISBNs: 079184241 (print)
Venue - Dates: ASME Turbo Expo 2006: Power for Land, Sea and Air, Spain, 2006-05-08 - 2006-05-11
Subjects:
Organisations: Aerodynamics & Flight Mechanics Group
ePrint ID: 334488
Date :
Date Event
15 October 2006Published
Date Deposited: 13 Mar 2012 17:07
Last Modified: 17 Apr 2017 17:26
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/334488

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