International Journal of Aeronautical and Space Sciences

  • 제15권4호
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  • Pages.374-382
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  • 2014
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  • 2093-274X(pISSN)
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  • 2093-2480(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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Computational Analysis of the Aerodynamic Performance of a Long-Endurance UAV

  • Jin, Wonjin (Dept. of Aviation Maintenance Engineering, Far East University) ;
  • Lee, Yung-Gyo (Aerodynamics Division, Korea Aerospace Research Institute)
  • 투고 : 2014.06.30
  • 심사 : 2014.10.07
  • 발행 : 2014.12.30
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초록

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.

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참고문헌

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피인용 문헌

  1. Wing Design Optimization for a Long-Endurance UAV using FSI Analysis and the Kriging Method vol.17, pp.3, 2016, https://doi.org/10.5139/IJASS.2016.17.3.423