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http://dx.doi.org/10.5139/JKSAS.2004.32.10.118

Flapping Propulsion of Oscillating Flat Plates  

Ahn, June-Sung (한양대학교 대학원 기계공학과)
Han, Cheol-Heui ((주)경원테크)
Kim, Chang-Hee (한양대학교 대학원 기계공학과)
Cho, Jin-Soo (한양대학교 기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.10, 2004 , pp. 118-126 More about this Journal
Abstract
The propulsive characteristics of oscillating flat plates are investigated using a discrete vortex method. The plates and their wakes are represented by discrete point vortices. To analyze the closely coupled aerodynamic interference between the plates, a vortex core model and a vortex core addition scheme are combined. A calculated wake shape for a flat plate in heaving oscillation is compared with flow visualization. The effect of wake shapes on the propulsive characteristics of the plates in pitching oscillation is investigated. The propulsive characteristics of oscillating plates with three cases (1. one is stationary and another is oscillating, 2. both oscillating in phase, 3. both oscillating out of phase) are calculated. The plates oscillating out of phase showed the largest thrust force among the three cases.
Keywords
Discrete Vortex Method; Wake Roll-up; Pitching Oscillation; Heaving Oscillation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Silverstein, A. and Joyner, U. T, "Experimental Verification of the Theory of Oscillating Airfoils", NACA Report No. 673, 1939.
2 Katz, J., and Weihs, D., "Behaviour of Vortex Wakes From Oscillating Airfoils," Journal of Aircraft, Vol. 15, No. 12, Dec. 1978, pp. 861-863.   DOI   ScienceOn
3 Knoller, R., "Die Gesetze des Lufwiderstandes," Flug-und Motortechnik(Wien), Vol. 3, No. 21, 1909, pp. 1-7.
4 Katzmayr, R., "Effect of Periodic Changes of Angle of Attack on Behavior of Airfoils", NACA Report No. 147, Oct., 1922.
5 Jones, K. D., Dohring, C. M., and Platzer, M. F., "Wake Structures Behind Plunging Airfoils: A Comparison of Numerical and Experimental Results," AlAA Paper No. 96-0078, Reno, Nevada, Jan. 1996.
6 Garrick, I. E., "Propulsion of a Flapping and Oscillationg Airfoil," NACA Report 567, 1936.
7 Bratt, J. B., "Flow Patterns in the Wake of an Oscillating Airfoil,", Aeronautical Research Council, R&M 2773, 1953.
8 장조원, "진동하는 NACA 4412 에어포일 근접후류에서의 레이놀즈수 효과 I : 평균속도장," 한국항공우주학회지, 제 31권 제 7호, 2003, pp. 15-25.
9 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.
10 Katz, J., and Weihs, D., "Hydrodynamic Propulsion by Large Amplitude Oscillation of an Airfoil with Chordwise Flexibility," Printed in Great Britain, February 8, 1978.
11 Akiyama, M., Takato, K, Tsutsui, T., Sugiyama, H., and Ninimiya, N., "Flow Around Vibrating Elastic Plates," The 6th Asian Symposium on Visualization, Paper number 130, 2001.
12 노기덕, "Weis-Fogh형 선박 추진기구의 역학적 특성계산," 대한기계학회논문집 B, 제 21권 제 11호, 1997, pp. 1518-1526.   과학기술학회마을
13 Han, C., Yoon, Y, and Cho, J., "Unsteady Aerodynamics Analysis of Tandem Flat Plates in Ground Effect", Journal of Aircraft, Vol.39, No.6, Nov-Dec. 2002, pp. 1028-1034.   DOI   ScienceOn
14 Betz, A., "Ein Beitrag zur Erklarung des Segelfluges," Zeitschrift fur Flugtechnik und Motorluftschiffahrt, Vol. 3, Jan. 1912, pp. 269-272.
15 Theodorsen, T, "General Theory of Aerodynamic Instability and the Mechanism of Flutter," NACA Report No. 496, 1935.
16 장조원,윤용현,탄명훈, "진동하는 에어포일 근접후류에서의 캠버효과," 한국항공우주학회지, 제 29권 제 8호, 2001, pp. 57-65.
17 Jones, K. D., and Platzer, M. F., "An Experimental and Numerical Investigation of Flapping-Wing Propulsion," AlAA Paper No. 99-0995, Reno, Nevada, Jan. 1999.
18 손명환, "Weis-Fogh Wing의 Partial Fling-Clap 운동과 관련한 비정상 공기역학," 한국항공우주학회지, 제 25권 제 1호, 1997, pp. 14-24.