Journal of Institute of Convergence Technology (융복합기술연구소 논문집)

Institute of Convergence Technology (한국교통대학교 융복합기술연구소)
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Study on the Wake Roll-up Behind Multiple Wings in Formation Flight

편대비행 하는 항공기 날개들에서 발생하는 후류말림 연구

  • Han, Cheolheui (Department of Aeronautical and Mechanical Design Engineering, Korea National University of Transportation)
  • 한철희 (한국교통대학교 항공기계설계전공)
  • Received : 2020.08.11
  • Accepted : 2020.10.30
  • Published : 2020.11.30
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Abstract

The wake shapes behind wings in formation flight are very important to the aerodynamics and performances of aircrafts. In the present study, a discrete vortex methood is extended to handle the wake rollups behind multiple wings. It was found that the relative distance between the wings and the rotational direction of the wingtip vortices have significant effect on the movement of the wingtip vortices. When the wings are close to each other, the wingtip vortices moved faster than the wings of large relative distances. The vortex pair of opposite signs generated from each wingtip has an effect of moving the wingtip vortices upward. The relative height between the wings has an effect of moving the wingtips along the centerline of each vortex. The wakeshape behind multiple wings is a function of the relative distances and thus is dependent on the configuration of the formation flight. In the futhre, a study on the vortex movement pattern will be studied.

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References

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