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Two-dimensional viscous flow past flexiblesail sections close to idealincidence

Published online by Cambridge University Press:  04 July 2016

P. S. Jackson  and
S. P. Fiddes
P. S. Jackson
Affiliation:
Department of Mechanical Engineering , University of Auckland, New Zealand
S. P. Fiddes
Affiliation:
Department of Aerospace Engineering , University of Bristol, Bristol, UK
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Abstract

A model of the viscous flow past a flexible sailsection operating near the ideal incidence isdescribed. Viscous effects are calculated via weakviscous-inviscid interaction of a panel method andan integral boundary layer method, and a new modelfor the leading edge separation bubble isintroduced. The flexible section is allowed todeform in response to the pressure and shearstresses acting on it. Results are presented for theeffect of incidence, excess length and Reynoldsnumber on the development of the boundary layers oneach side of the section and the consequences forthe lift and drag of the section are described. Thenumerical model is compared with experimentalresults, giving in general good agreement andshedding light on the physics of the viscous flowpast flexible membranes.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 99 , Issue 986 , July 1995 , pp. 217 - 225
Copyright
Copyright © Royal Aeronautical Society 1995 

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