Flow around a blunt and divergent trailing edge

Flow around a blunt and divergent trailing edge Measurements were obtained with a combination of surface taps, hot-film anemometry, and laser Doppler velocimetry to characterize flow around an airfoil whose upper and lower surfaces diverge downstream from 90% of chord to form a blunt trailing edge. Vortex shedding occurred at Strouhal number of 0.21 at least in the range of Reynolds numbers from 2×105 to 2.8×106. Distributions of mean pressure, mean velocity, and turbulence quantities in the attached boundary layers and downstream wake were obtained at a Reynolds number of 2.5×106 and provide insights into their importance to the aerodynamic drag of blunt airfoils. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Flow around a blunt and divergent trailing edge

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-002-0421-z
Publisher site
See Article on Publisher Site

Abstract

Measurements were obtained with a combination of surface taps, hot-film anemometry, and laser Doppler velocimetry to characterize flow around an airfoil whose upper and lower surfaces diverge downstream from 90% of chord to form a blunt trailing edge. Vortex shedding occurred at Strouhal number of 0.21 at least in the range of Reynolds numbers from 2×105 to 2.8×106. Distributions of mean pressure, mean velocity, and turbulence quantities in the attached boundary layers and downstream wake were obtained at a Reynolds number of 2.5×106 and provide insights into their importance to the aerodynamic drag of blunt airfoils.

Journal

Experiments in FluidsSpringer Journals

Published: Sep 26, 2002

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