Yıl: 2020 Cilt: 8 Sayı: 1 Sayfa Aralığı: 54 - 65 Metin Dili: İngilizce DOI: 10.5505/jems.2020.60490 İndeks Tarihi: 02-11-2020

Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance

Öz:
In this study, effects of leading edge tubercles on a 2013 America’s Cup boat wingsail are investigated byviscous Computational Fluid Dynamics (CFD). Adding tubercles on the leading edge of the sail is inspiredby humpback whales, which are fast and maneuverable animals along baleen whales thanks to theirdistinctive flippers. It has been seen from the examined studies that tubercles on the leading edge of thewings delay stall and provide better lift/drag ratio in high angle of attacks (AoA) compared to the plainwing, which might be beneficial for wingsails.A 2013 America’s Cup boat wingsail geometry is developed for measuring the effects of tubercles on itsperformance. Sinusoidal tubercles are placed on leading edge with different wave lengths and amplitudesvarying as a function of chord length. Post-stall performance of the wingsail has been improved whereasonset of stall has been observed to be identical to that of the base wingsail.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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  • [1] O.J. Scherer, “Aerodynamics of high performance wing sails”, Chesapeake Sailing Yacht Symposium, Annapolis, USA (1974). Retrieved from http:// mararchief.tudelft.nl/file/39710/
  • [2] E. F. Fish, M. J. Battle, “Hydrodynamic design of the humpback whale flipper”, Journal of Morphology, 225:51-60 DOI: 10.1002/jmor.1052250105, 1995.
  • [3] D. S. Miklosovic, M. M. Murray, L. E. Howle, F. E. Fish, “Leading-edge tubercles delay stall on humpback whale (Megaptera novaeangliae) flippers”, Physics of Fluids 16(5), DOI: 10.1063/1.1688341, 2004.
  • [4] P. Watts, F. E. Fish, “The influence of passive, leading edge tubercles on wing performance”, Proc. Of Unmanned Untethered Submersible Technology (UUST). Durham, NH Retrieved from https://www.researchgate. net/publication/229002925_The_ influence_of_passive_leading_edge_ tubercles_on_wing_performance , 2001.
  • [5] H. Johari, C. Henoch, D. Cusodio, L. Levshin, “Effects of leading-edge protuberances on airfoil performance”, AIAA Journal, 45(11), pp. 2634-2642. DOI 10.2514/1.28497, 2007.
  • [6] K. l. Hansen, R.M. Kelso, B. B. Dally, “Performance variations of leading edge tubercles for distinct airfoil profiles”, AIAA Journal, 49(1):185- 194, 2011.
  • [7] R. K. Atkins , “Investigation into the flow behavior of a NACA 0021 airfoil with leading edge undulations simulated with RANS in Star-CCM+”, (Master’s thesis). Retrieved from https://www.escholar.manchester. ac.uk/jrul/item/?pid=uk-ac-manscw:274343, 2015.
  • [8] W. M. Lohry, D. Clifton, L. Martinelli, “Characterization and design of tubercle leading-edge wings”, Seventh International Conference on Computational Fluid Dynamics (ICCFD7-4302), Big Island, Hawaii, 2012.
  • [9] K. L. Hansen, “Effect of leading edge tubercles on airfoil performance”, (Doctoral dissertation). Retrieved from https://digital.library. adelaide.edu.au/dspace/ bitstream/2440/79211/8/02whole. pdf, 2012.
  • [10] F. R. Menter, “Two-equation eddyviscosity turbulence models for engineering applications”, AIAA Journal, Vol. 32, No. 8 pp. 1598-1605, 1994.
  • [11] D. Tezel, A. Z. Saydam, S. Çalışal, “Performance assessment of hydrofoils with biomimetically improved leading edges”, Advanced Model Measurement Technology for the Maritime Industry, Glasgow UK, 2017.
  • [12] H. Schlichting, “Boundary-Layer Theory”, (7th ed.). New York: McGraw Hill, 1979.
  • [13] America’s Cup Properties Inc., “AC72 Class Rule Version 1.1. USA”. Retrieved from http://www.cupinfo.com/ downloads/ac72-class-rule-1p1-a18- all-072613.pdf ,2011.
  • [14] S. Collie, B. Fallow, N. Hutchins, H. Youngren, “Aerodynamic design development of AC72 wings”, 5th High Performance YachtDesign Conference, Auckland, 2015.
  • [15] V. Chapin, N. Gourdain, N. Verdin, A. Fiumara, J. Senter, “Aerodynamic study of a two-elements wingsail for high performance multihull yachts”, 5th High Performance Yacht Design Conference, Auckland NZ Retrieved from http://oatao.univ-toulouse. fr/15683/, 2015.
  • [16] M. I. Viola, M. E. Biancolini, M. Sacher, U. Cella, “A CFD based wing sail optimisation method coupled to a VPP”, 5th High Performance Yacht Design Conference, Auckland, 2015.
  • [17] H. Kemali, “Effects of leading edge tubercles on wing sail performance” (MSc dissertation). Retrieved from https://tez.yok.gov.tr/ UlusalTezMerkezi/giris.jsp, 2018.
  • [18] W. A. Blakeley, R. Flay, H. Furukawa, P. J. Richards, “Evaluation of multielement wing sail aerodynamics from two-dimensional wind tunnel investigations”, 5th High Performance Yacht Design Conference, Auckland, 2015.
APA Kemali H, SAYDAM A, helvacioglu s (2020). Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. , 54 - 65. 10.5505/jems.2020.60490
Chicago Kemali Harun,SAYDAM AHMET ZIYA,helvacioglu sebnem Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. (2020): 54 - 65. 10.5505/jems.2020.60490
MLA Kemali Harun,SAYDAM AHMET ZIYA,helvacioglu sebnem Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. , 2020, ss.54 - 65. 10.5505/jems.2020.60490
AMA Kemali H,SAYDAM A,helvacioglu s Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. . 2020; 54 - 65. 10.5505/jems.2020.60490
Vancouver Kemali H,SAYDAM A,helvacioglu s Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. . 2020; 54 - 65. 10.5505/jems.2020.60490
IEEE Kemali H,SAYDAM A,helvacioglu s "Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance." , ss.54 - 65, 2020. 10.5505/jems.2020.60490
ISNAD Kemali, Harun vd. "Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance". (2020), 54-65. https://doi.org/10.5505/jems.2020.60490
APA Kemali H, SAYDAM A, helvacioglu s (2020). Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. Journal of Eta Maritime Science, 8(1), 54 - 65. 10.5505/jems.2020.60490
Chicago Kemali Harun,SAYDAM AHMET ZIYA,helvacioglu sebnem Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. Journal of Eta Maritime Science 8, no.1 (2020): 54 - 65. 10.5505/jems.2020.60490
MLA Kemali Harun,SAYDAM AHMET ZIYA,helvacioglu sebnem Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. Journal of Eta Maritime Science, vol.8, no.1, 2020, ss.54 - 65. 10.5505/jems.2020.60490
AMA Kemali H,SAYDAM A,helvacioglu s Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. Journal of Eta Maritime Science. 2020; 8(1): 54 - 65. 10.5505/jems.2020.60490
Vancouver Kemali H,SAYDAM A,helvacioglu s Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance. Journal of Eta Maritime Science. 2020; 8(1): 54 - 65. 10.5505/jems.2020.60490
IEEE Kemali H,SAYDAM A,helvacioglu s "Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance." Journal of Eta Maritime Science, 8, ss.54 - 65, 2020. 10.5505/jems.2020.60490
ISNAD Kemali, Harun vd. "Investigation of the Effect of Leading-Edge Tubercles on Wingsail Performance". Journal of Eta Maritime Science 8/1 (2020), 54-65. https://doi.org/10.5505/jems.2020.60490