Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Aerodynamic Characteristics of a Variable-Span Wing Flying Inside a Channel II (Effect of Asymmetric Wing Extensions)

채널 내를 비행하는 가변스팬 날개 공력특성 II (비대칭 날개 펼침)

  • Han, Cheolheui (Dept. of Aeronautical & Mechanical Design Engineering, Korea National University of Transportation)
  • 한철희 (한국교통대학교 항공.기계설계학과)
  • Received : 2016.08.11
  • Accepted : 2016.09.12
  • Published : 2016.09.30
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Abstract

In this paper, a wind-tunnel test is accomplished to investigate the roll characteristics of a variable-span wing flying inside a channel. The factors that affect the roll characteristics of the wing were identified by analyzing the measured data; accordingly, when the wing is flying without both the ground and sidewall effects, the asymmetric wing extension causes the roll moment. Both the ground and the sidewall can increase the roll moment, but when the wing is affected by both the ground and the sidewall, the roll moment does not increase as much as the case where the wing is only affected by the ground. Also, the aerodynamic characteristics of the flying wing inside a channel are the nonlinear function of the wing height and the gap between the wingtip and the sidewall, both of which should be considered in a study of the stability and the flight control of the wing-in-ground effect of the vehicle flying inside a channel.

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References

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