Passive control of transition in three-dimensional boundary layers, with emphasis on discrete roughness elements

A brief review of laminar flow control techniques is given and a strategy for achieving laminarization for transonic transport aircraft is discussed. A review of some flight-test results on swept-wing transition is presented. It is also shown that polished leading edges can create large regions of l...

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Published inPhilosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences Vol. 369; no. 1940; pp. 1352 - 1364
Main Authors Saric, William S., Carpenter, Andrew L., Reed, Helen L.
Format Journal Article
LanguageEnglish
Published England The Royal Society Publishing 13.04.2011
The Royal Society
Subjects
Aerial locomotion
Aircraft
Aircraft wings
Boundary layer control
Boundary layers
Discrete Roughness
Laminar flow
Laminar Flow Control
Pressure gradients
Review
Reynolds number
Surgical suction
Three-Dimensional Boundary Layers
Transition
Wavelengths
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Summary:A brief review of laminar flow control techniques is given and a strategy for achieving laminarization for transonic transport aircraft is discussed. A review of some flight-test results on swept-wing transition is presented. It is also shown that polished leading edges can create large regions of laminar flow because the flight environment is relatively turbulence free and the surface finish reduces the initial amplitude of the stationary crossflow vortex.
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Theme Issue 'Flow-control approaches to drag reduction in aerodynamics: progress and prospects' compiled and edited by Michael Leschziner, Haecheon Choi and Kwing-So Choi
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1364-503X
1471-2962
DOI:10.1098/rsta.2010.0368