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Experiments in Fluids
Published in: Experiments in Fluids 4/2006

01-10-2006 | Research Article

Unsteady characteristics of the static stall of an airfoil subjected to freestream turbulence level up to 16%

Authors: Christophe Sicot, Sandrine Aubrun, Stephane Loyer, Philippe Devinant

Published in: Experiments in Fluids | Issue 4/2006

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Abstract

Fluctuation of the separation point on an airfoil under high turbulence level is investigated using pressure measurements and flow visualisations. The characteristics of the unsteady loads induced by Karman vortex shedding are studied. This is related with a local approach based on the study of the oscillation zone. A method based on the pressure standard deviation is proposed to obtain the length of this zone, which is found to be independent of the turbulence level. This result is in agreement with that obtained by spectral analysis which shows no effect of the turbulence level on the Karman vortex shedding frequency.
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Metadata
Title
Unsteady characteristics of the static stall of an airfoil subjected to freestream turbulence level up to 16%
Authors
Christophe Sicot
Sandrine Aubrun
Stephane Loyer
Philippe Devinant
Publication date
01-10-2006
Publisher
Springer-Verlag
Published in
Experiments in Fluids / Issue 4/2006
Print ISSN: 0723-4864
Electronic ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-006-0187-9

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