Turbulence in the Wake of a Delta Wing

  • G. D. Miller
  • C. H. K. Williamson
Conference paper
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 36)


Although the aerodynamics of delta wings has been studied extensively, remarkably little attention has been devoted to the downstream wake. In the present work we study the large- and small-scale turbulent structure in the trailing vortex wake, with a view to understanding the basic instabilities, vertical mixing and decay rate of the primary vortex pair. In our experimental work we use both a water towing tank and a wind tunnel. Our approach involves flow visualization, including PIV and also point-velocity measurements, as well as analytical studies. Initial experiments employed a novel technique of flying delta wings in free flight through water to completely eliminate any disturbances from struts or the towing mechanism.


Wind Tunnel Vortex Pair Primary Vortex Delta Wing Free Flight 
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  1. CROW, S. C. 1970 Stability theory for a pair of trailing vortices AIAA J. 8, 2172ADSCrossRefGoogle Scholar
  2. DEVENPORT, W. J., RIFE, M. C., Liapas, S. I.& Miranda, J. 1994 Turbulent Trailing VorticesAIAA Paper 94–0404Google Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • G. D. Miller
    • 1
  • C. H. K. Williamson
    • 1
  1. 1.Sibley School of Mechanical & Aerospace EngineeringCornel UniversityIthacaUSA

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