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Aerodynamics of a 2-D Flat-plate Airfoil with Tripwire
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  • Aerodynamics of a 2-D Flat-plate Airfoil with Tripwire
  • Aerodynamics of a 2-D Flat-plate Airfoil with Tripwire
저자명
제두호,이종우,Je. Du-Ho,Lee. Jongwoo
간행물명
韓國軍事科學技術學會誌
권/호정보
2013년|16권 4호|pp.575-581 (7 pages)
발행정보
한국군사과학기술학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this paper, we experimentally investigated the effects of attached cylindrical tripwires on the aerodynamic performance. The research was carried out with a simple two-dimensional (2-D) rectangular airfoil fabricated from thin flat-plate aluminium, with elliptical leading and trailing edges. Tripwires of varying widths and thicknesses, and attack angles of $-5^{circ}{sim}20^{circ}$ were used to investigate the aerodynamic characteristics (e.g. lift and drag forces) of the airfoil. We found that attaching the tripwires to the lower surface of the airfoil enhanced the lift force and increased the lift-to-drag ratio for low attack angles. However, attaching the tripwires to the upper surface tended to have the opposite effects. Moreover, we found that attaching the tripwires to the trailing edge had similar effects as a Gurney flap. The aerodynamic characteristics of the flat-plate airfoil with tripwires can be used to develop passive control devices for aircraft wings in order to increase their aerodynamic performance when gliding at low attack angles.