Physical mechanisms of lift enhancement for flexible delta wings

E Vardaki, I Gursul, G S Taylor

Research output: Contribution to conferencePaper

12 Citations (Scopus)

Abstract

Passive lift enhancement for flexible nonslender delta wings has been demonstrated as a potential method for the control of vortex-dominated wing flows. Physical mechanisms of lift enhancement and the effect of important variables are discussed. Lift enhancement for flexible wings with low/moderate sweep is a very complex phenomenon, involving self-induced antisymmetric vibrations of leading edges, spanwise camber effect due to the large time-averaged deflection, shear layer instabilities, reattachment, increased mean vorticity flux and circulation, re-formation of the leading edge vortices, possible enhancement of streamwise pressure gradient, and the effects of frequency and edge velocity.
Original languageEnglish
Pages14407-14419
Number of pages13
Publication statusPublished - 2005
Event43rd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, USA United States
Duration: 1 Jan 2005 → …

Conference

Conference43rd AIAA Aerospace Sciences Meeting and Exhibit
CountryUSA United States
CityReno, NV
Period1/01/05 → …

Keywords

  • Vibrations (mechanical)
  • Pressure effects
  • Wings
  • Flow of fluids
  • Vortex flow
  • Natural frequencies
  • Lift

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