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Computational and experimental investigations of low-Reynolds-number flows past an aerofoil

Published online by Cambridge University Press:  03 February 2016

W. Yuan ,
M. Khalid ,
J. Windte ,
U. Scholz  and
R. Radespiel
W. Yuan
Affiliation:
Institute for Aerospace Research (IAR), National Research Council (NRC) Canada, Ottawa, Ontario, Canada
M. Khalid
Affiliation:
Institute for Aerospace Research (IAR), National Research Council (NRC) Canada, Ottawa, Ontario, Canada
J. Windte
Affiliation:
Institute of Fluid Mechanics (ISM), Technical University of Braunschweig (TUBS), Braunschweig, Germany
U. Scholz
Affiliation:
Institute of Fluid Mechanics (ISM), Technical University of Braunschweig (TUBS), Braunschweig, Germany
R. Radespiel
Affiliation:
Institute of Fluid Mechanics (ISM), Technical University of Braunschweig (TUBS), Braunschweig, Germany
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Abstract

This paper presents investigations of low-Reynolds-number flows past an SD7003 aerofoil at Re = 60k, where transition takes place across a laminar separation bubble (LSB). Results of experimental measurements and numerical calculations are analysed and discussed. In particular, reasonably good results were obtained using two different numerical approaches: Large-eddy simulation (LES) that demonstrated vortical structures at different transition stages, and where the transition occurred naturally; unsteady Reynolds-averaged Navier-Stokes (URANS) simulations for several turbulence models based on the ω-length-scale equation, coupled to a linear stability solver to predict the transition position.

Type
Research Article
Information
The Aeronautical Journal , Volume 111 , Issue 1115 , January 2007 , pp. 17 - 29
Copyright
Copyright © Royal Aeronautical Society 2007 

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