Review of unsteady vortex flows over slender delta wings

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Abstract

A wide range of unsteady phenomena of leading-edge vortices over stationary and dynamic slender delta wings were investigated. The origin, characteristics, and physical mechanisms of these unsteady phenomena and their role in buffeting were discussed. It was found that vortex breakdown, vortex interactions, and vortex shedding, play an important role in wing and fin buffeting, although vortex breakdown is the main source of buffeting over slender wings. With the requirement for high maneuverability and increasing wing flexibility for future unmanned air vehicles, unsteady vortex flow and vortex/structure interactions are expected to become more predominant.
Original languageEnglish
Pages (from-to)299-319
Number of pages21
JournalAIAA Journal of Aircraft
Volume42
Issue number2
Publication statusPublished - 2005

Keywords

  • Probability
  • Mathematical models
  • Vibrations (mechanical)
  • Delta wing aircraft
  • Velocity measurement
  • Probability density function
  • Particle injectors
  • Viscosity
  • Aerodynamics
  • Wind tunnels
  • Vortex flow
  • Reynolds number
  • Unsteady flow

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