Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Prediction of Yawing Moment for a Hand-Launched UAV Considering Interference Effect of Propeller Wake

프로펠러 후류 간섭 효과를 고려한 투척식 무인기 요잉모멘트 예측

  • Park, Ji-Min (Graduate School of Mechanical, Aerospace, and Informatics Engineering, Gyeongsang National University) ;
  • Kim, Dong-Hyun (School of Mechanical, Aerospace, and Informatics Engineering, Gyeongsang National University and Research Center for Aircraft Technology (ReCAPT)) ;
  • Park, Hyung-Ju (Aeronautical Systems Center, Defense Agency for Technology and Quality)
  • 박지민 (경상대학교 기계항공정보융합공학부 대학원) ;
  • 김동현 (경상대학교 기계항공정보융합공학부 및 항공기부품 기술연구소) ;
  • 박형주 (국방기술품질원 항공센터(창원))
  • Received : 2021.02.01
  • Accepted : 2021.06.18
  • Published : 2021.08.05
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Abstract

In this paper, three-dimensional unsteady computational fluid dynamic(CFD) analyses based on overset grid technique have been performed for a hand-launched unmanned aerial vehicle(UAV) considering the wake effect generated by a rotating propeller. In addition, the defection of rudder is considered in order to consider to predict the equilibrium condition of yawing moment during cruise flight conditions. It is importantly shown in this paper that the wake interference effect of the propeller is significant to accurately predict the yawing moment of the UAV and the yawing moment coefficient corresponding to a flight speed can be different because of its different amount of wake effect due to the different rotating speed of the propeller.

Keywords

Acknowledgement

본 연구는 2019년 국방기술품질원 연구과제(과제명: 전산유체해석을 통한 소형무인기 공력특성 분석)로 수행된 결과의 일부이며, 지원에 감사를 표하는 바입니다.

References

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