Journal of Institute of Convergence Technology (융복합기술연구소 논문집)

Institute of Convergence Technology (한국교통대학교 융복합기술연구소)
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Study on the Wake Evolution on the Non-Planar Ground Using a Discrete Vortex Method

이산와류법을 사용한 비평면 지면 와류전개 연구

  • Han, Cheolheui (Department of Aeronautical and Mechanical Design Engineering, Korea National University of Transportation)
  • 한철희 (한국교통대학교 항공기계설계학과)
  • Received : 2016.11.01
  • Accepted : 2016.11.18
  • Published : 2016.11.30
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Abstract

Accurate simulation of wakeshapes behind a wing is important for the performance prediction of the aircraft and the wake hazard problem in the airport. In the present study, wakeshapes behind a wing inside tunnels are simulated in regard to the development of wing-in-ground effect vehicles. A discrete vortex method with a nonplanar ground modelling is used for the simulation. It was found that the wingtip vortices move toward outboard directions when the wing is in ground effect. When the wing is placed inside tunnels, the wingtip vortices move along the tunnel wall with counter clockwise direction. As the gap between the wingtip and the tunnel decreases, the wingtip vortices move further along the tunnel wall. Both vortices from bothsides of the wing will murge, which will be studied in future using a viscous computation.

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References

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