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Flow around a blunt and divergent trailing edge

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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.

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Authors and Affiliations

  1. Dept. of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada, , , , ,

    B. Thompson

  2. Department for Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180, USA, , , , ,

    R. Lotz

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  1. B. Thompson
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  2. R. Lotz
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Thompson, .B., Lotz, .R. Flow around a blunt and divergent trailing edge. Exp Fluids 33, 374–383 (2002). https://doi.org/10.1007/s00348-002-0421-z

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  • DOI: https://doi.org/10.1007/s00348-002-0421-z

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