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

Aerodynamic Characteristics of a Three-Dimensional Wing in Heave Oscillation

히브진동하는 3차원 날개 공력특성

  • 신철수 (국립충주대학교 항공기계설계학과) ;
  • 김태완 (국립충주대학교 산업대학원) ;
  • 이형욱 (국립충주대학교 에너지시스템공학과) ;
  • 한철희 (국립충주대학교 항공기계설계학과)
  • Received : 2011.02.14
  • Accepted : 2011.09.22
  • Published : 2011.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

With the progress of micro actuator technology, studies on the development of micro air flapping wing vehicles are actively undergoing. In the present study, the changes of both lift and thrust characteristics of the wings are investigated using a boundary element method. Lift of the heaving wing is not generated when the wing is beating with smaller frequencies than 1 Hz. Thrust increases with amplitude and frequency. As the wing's taper and aspect ratios increase, both lift and thrust also increase. Results on the pitching oscillation and flapping motion will be included in the future work.

초소형 작동기 기술의 발전과 함께, 초소형 플랩핑 날개짓 비행체 개발 연구가 활발히 진행중이다. 본 연구에서는 경계요소법을 사용하여 히브진동운동하는 3차원 날개의 운동학적 매개변수인 진동 주파수 및 진폭과 기하학적 변수인 테이퍼 및 종횡비의 변화에 따른 양력 및 추력 특성을 연구했다. 날개짓 주파수가 1Hz 보다 작은 경우 진폭과 무관하게 양력이 발생하지 않았다. 추력계수 값은 날개짓 주파수와 히빙진폭이 클수록 값의 크기가 증가했다. 테이퍼 비와 종횡비가 큰 날개일수록 양력 및 추력 값이 크게 나타났다. 향후 피칭 및 플랩핑 운동 날개의 공력특성변화에 대한 연구를 수행할 예정이다.

Keywords

References

  1. Rozhdestvensky, K. V. and Ryzhov, V. A., "Aerohydrodynamics of Flapping-wing Propulsors", Progress in Aerospace Sciences, Vol. 39, 2003, pp. 585-633. https://doi.org/10.1016/S0376-0421(03)00077-0
  2. Ho, S., Nassef, H., Pornsinsirirak, N., Tai, Y-C, and Ho, C-M., "Unsteady Aerodynamics and Flow Control for Flapping Wing Flyers", Progress in Aerospace Sciences, Vol. 39, 2003, pp. 635-681. https://doi.org/10.1016/j.paerosci.2003.04.001
  3. Knoller, R., "Die Gesetze des Lufwiderstandes," Flug-und Motortechnik(Wien), Vol. 3, No. 21, 1909, pp. 1-7.
  4. Betz, A., "Ein Beitrag zur Erklarung des Segelfluges," Zeitschrift fur Flugtechnik und Motorluftschiffahrt, Vol. 3, Jan. 1912, pp. 269- 272.
  5. Katzmayr, R., "Effect of Periodic Changes of Angle of Attack on Behavior of Airfoils," NACA Report No. 147, Oct., 1922.
  6. Von Karman, T. and Burgers, J. M., "General Aerodynamic Theory - Perfect Fluids," Division E, Vol. II, Aerodynamic Theory, Ed. Durand, W. F., 1943, pp. 308.
  7. Birnbaum. W., "Der Schlagflugelpropeller und die Kleinen Schwingungen Elastisch Befestiger Tragflüegel," Zeitschrift für Flugtechnik und Motorluftschiffahrt, Vol. 15, 1924, pp. 128-134.
  8. Jones, K. D., and Platzer, M. F., "An Experimental and Numerical Investigation of Flapping-Wing Propulsion," AIAA Paper No. 99-0995, Reno, Nevada, Jan. 1999.
  9. Tuncer, I. H. and Mustafa Kaya, "Thrust Generation Caused by Flapping Airfoils in a Biplane Configuration," Journal of Aircraft, Vol. 37, No. 3, 2003. pp. 509-515.
  10. Kim,D.-K., Lee, J.-S., Han, J.-H., Improved Aerodynamic Model for Efficient Analysis of Flapping-Wing Flight, AIAA Journal, Vol. 49, No. 4, pp. 868-872, April ,2011 https://doi.org/10.2514/1.J050556
  11. DeLaurier, J.D., "An Aerodynamic Model for Flapping-Wing Flight," The Aeronautical Journal of the Royal Aeronautical Society, pp. 125-130, April 1993.
  12. Truong, Q-T., Nguyen,Q. V., Truong, V. T., Park, H. C., Byun, D. Y., Goo, N. S., "A Modified Blade Element Theory for Estimation of Forces Generated by a Beetle-mimicking Flapping Wing System," Bioinspiration & Biomimetics, Vol. 6, 2011. https://doi.org/10.1088/1748-3182/6/3/036008
  13. Michael J.C. Smith, Peter J. W., Marc H. Williams, " The Advantages of an Unsteady Panel Method in Modelling the Aerodynamic Forces on Rigid Flapping Wings," The Journal of Experimental Biology, Vol. 199, 1996, pp. 1073-1083.
  14. Persson, P.-O., Willis, D. J., Peraire, J., "Numerical Simulation of Flapping Wings using a Panel Method and a High-Order Navier-Stokes Solver," International Journal for Numerical Methods in Engineering, Vol. 1, pp.1-20., 2011.
  15. Han, C., "Investigation of Unsteady Aerodynamic Characteristics of a Seagull Wing in Level Flight," Journal of Bionic Engineering, Vol.6, No.4, December 30, 2009. https://doi.org/10.1016/S1672-6529(08)60136-5
  16. Katz, J. and Plotkin, A. Low Speed Aerodynamics, Cambridge University Press, 2001.