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Experimental study of the leading edge vortex-flap of double-delta wing

  • Tie Zhong Liu*
  • , Jin Jun Wang
  • , Hong Wei He
  • , Cong Pan
  • *Corresponding author for this work
  • Beihang University
  • AVIC Aerodynamics Research Institute

Research output: Contribution to journalArticlepeer-review

Abstract

A wind tunnel experiment was conducted to investigate the inner-vortex-flap and outer-vortex-flap of double-delta wing. Various factors affecting the efficiency of vortex-flap, including the state of leading-edge wing, the shape of vortex-flap, the skew of vortex-flap, the combination of inner-vortex-flap and outer-vortex-flap, and the efficiency of trailing edge flap were discussed. Especially, in the light of the difference between the vortex field of inner-vortex-flap and outer-vortex-flap, the design features of inner-vortex-flap and outer-vortex-flap of multiple planform shape wing have been analyzed, which provide a reference for the design of vortex-flap of double-delta wing. The results show that proper design of the leading edge vortex-flaps and trailing edge flaps can optimize the low-speed performance of large sweep double-delta wing.

Original languageEnglish
Pages (from-to)6-9
Number of pages4
JournalShiyan Liuti Lixue/Journal of Experiments in Fluid Mechanics
Volume25
Issue number3
StatePublished - Jun 2011

Keywords

  • Leading edge thrust recovery
  • Lift-to-drag ratio
  • Multiple planform shape wing
  • Vortex-flap
  • Wind tunnel test

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