Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
권호 표지
DOI QR코드

DOI QR Code

Experimental Study on Aerodynamic Characteristics of Morphing Airfoil Configuration

모핑 에어포일 형상의 공력특성 실험연구

  • 고승희 (한국항공대학교 항공우주공학과 대학원) ;
  • 배재성 (한국항공대학교 기계항공공학부) ;
  • 김학봉 (한국항공대학교 기계항공공학부) ;
  • 노진호 (한국항공대학교 기계항공공학부) ;
  • 안석민 (한국항공우주연구원)
  • Received : 2012.05.27
  • Accepted : 2012.09.28
  • Published : 2012.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

The present paper is the preliminary study of the development of a morphing aircraft wing and investigates experimently the aerodynamic characteristics of a base airfoil and a morphing airfoil. The wind tunnel tests are conducted for a base Clark-Y airfoil, an airfoil with a mechanical flap, and a morphing airfoil. Lifts, drags, and pitching moments are measured by using a three-axis load cell and they are calibrated by considering solid blockage and wake blockage. The wind tunnel tests are conducted for various air speeds, Reynolds' numbers, and angles of attack. The experimental results show that the aerodynamic characteristics of the morphing airfoil in lift-drag and lift-pitching moment are better than those of the airfoil with a mechanical flap.

본 연구는 모핑 항공기 날개를 설계/제작하기 위한 선행 연구로서 기본날개단면 및 모핑날개단면에 대한 공력특성을 실험적으로 조사하였다. 이를 위해 Clark-Y형 에어포일을 가진 기본날개, 기계식 플랩을 가진 날개, 모핑플랩을 가진 날개를 제작하여 풍동실험을 수행하였다. 3축 로드셀을 이용하여 날개에 작용하는 양력, 항력 및 피칭모멘트를 측정하였으며, 풍동실험데이터는 Solid Blockage 와 Wake Blockage를 고려하여 보정하였다. 풍동 실험은 각 날개별로 다양한 속도, 레이놀즈, 받음각에 대해 수행되었다. 실험결과는 모핑 에어포일의 양력-항력 및 양력 피칭모멘트 특성이 기계식 플랩을 가지는 에어포일에 비해 우수한 것을 보여준다.

Keywords

References

  1. Bowman, J., Sanders, B., and Weisshaar, T., "Evaluating the Impact of Morphing Technologies on Aircraft Performance," AIAA Paper 2002-1631, April 2002.
  2. Gern, F. H., Inman, D. J., and Kapania, R. K., "Structural and Aeroelastic Modeling of General Planform Wings with Morphing Airfoils," AIAA Journal, Vol. 40, No. 4, 2002, pp. 628-637. https://doi.org/10.2514/2.1719
  3. Sanders, B., Eastep, F.E., and Foster, E., "Aerodynamic and Aeroelastic Characteristics of Wings with Conformal Control Surfaces for Morphing Aircraft," Journal of Aircraft, Vol. 40, No. 1, 2003, pp. 94-99. https://doi.org/10.2514/2.3062
  4. Amprikidis, M., and Cooper J. E., "Development of Smart Spars for Active Aeroelastic Structures," AIAA Paper 2003-1799, April 2003.
  5. Blondeau, J., Richeson, J., and Pines, D. J., "Design, Development and Testing of a Morphing Aspect Ratio Wing Using an Inflatable Telescopic Spar," AIAA Paper 2003-1718, April 2003
  6. Bae, J.S., Seigler, T.M., and Inman, D. J., "Aerodynamic and Static Aeroelastic Characteristics of a Variable-Span Morphing Wing," Journal of Aircraft, Vol. 42, No. 2, March-April, 2005. pp. 528-533. https://doi.org/10.2514/1.4397
  7. 고승희, 김현중, 배재성, 황재혁, 김학봉, 노진호, 최익현, "저 레이놀즈수에서의 에어포일 공력특성 실험연구," 항공우주시스템공학회, 2011 SASE Spring Conference, pp.24-29
  8. William, H. RAE., JR., Alan, Pole., Low-Speed Wind Tunnel Testing, 2nd ed, John Wiley & Sons Inc, Canada, 1984 , pp.344-366
  9. S.J.Miley, Department of Aerospace Engineering Texas A&M University , A Catalog of Low Reynolds Number Airfoil data for Wind Turbine Applications, 1st ed, Springfield, VA : National Technical Information Service, U.S. Dept. of Commerce, Texase, February 1982
  10. Achintya Haldar, Sankaran Mahadevan, Probability, Reliability, and Statistial Methods in Engineering Design, 1st ed, John Wiley & Sons Inc, New York, 2000 , pp.156-164

Cited by

  1. Air Resistance Due to the Deflector Configuration of Commonly Used Largetrucks vol.23, pp.2, 2014, https://doi.org/10.7735/ksmte.2014.23.2.138