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Computational Analysis of the Aerodynamic Performance of a Long-Endurance UAV
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  • Computational Analysis of the Aerodynamic Performance of a Long-Endurance UAV
  • Computational Analysis of the Aerodynamic Performance of a Long-Endurance UAV
저자명
Jin. Wonjin,Lee. Yung-Gyo
간행물명
International journal of aeronautical and space sciences
권/호정보
2014년|15권 4호|pp.374-382 (9 pages)
발행정보
한국항공우주학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This paper presents the computational aerodynamic analysis of a long-endurance UAV that was developed by the Korea Aerospace Research Institute (KARI), named EAV-2. EAV-2 is a technical demonstrator of aerodynamically efficient design, as well as a hybrid electric-propulsion system for future long-endurance UAVs. We evaluated the aerodynamic characteristics of six low-Reynolds number airfoils, using a panel method code, XFOIL, to select an optimal airfoil for the long-endurance mission of EAV-2. The computational results by a CFD code, FLUENT, suggested that the aerodynamic performance of EAV-2 would be notably improved after adopting SG6043 airfoil, and modifying the fuselage design. This reduced the total drag by 43%, compared to that of a previous KARI model, EAV-1, at the target lift of $C_L=1.0$. Also, we achieved a drag reduction of approximately 14% by means of the low-drag fuselage configuration.