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Modelling dynamic stall vortex inception at low Mach numbers

Published online by Cambridge University Press:  04 July 2016

A. J. Niven  and
R. A. McD. Galbraith
A. J. Niven
Affiliation:
Department of Mechanical and Aeronautical Engineering, University of Limerick, Ireland
R. A. McD. Galbraith
Affiliation:
Department of Aerospace Engineering, University of Glasgow, Scotland
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Extract

Results of a comparison of dynamic stall onset are presented, as assessed from low Mach number windtunnel data contained in the University of Glasgow's database and that from the well established Beddoes’ model. The model, which was originally developed to reconstruct higher Mach number dynamic stall characteristics, exhibited a lower stall onset incidence than that assessed from the windtunnel data. The differences and speculations on the physical reasoning underlying the two assessments are discussed. An addition to the Beddoes model is proposed which yields an improved reconstruction of the Glasgow windtunnel data.

Type
Research Article
Information
The Aeronautical Journal , Volume 101 , Issue 1002 , February 1997 , pp. 67 - 76
Copyright
Copyright © Royal Aeronautical Society 1997 

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