تجزیه و تحلیل روابط بین فشار و تغییر شکل المان سطح پوسته و اثر آن بر عملکرد لباس بالدار

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی مکانیک، دانشگاه سمنان، سمنان،ایران

2 دانشکده مهندسی مکانیک ، دانشگاه سمنان، سمنان،ایران

چکیده

حرفه‌ی پرواز با لباس بالدار به عنوان یکی از ورزش‌های پرطرفدار در شاخه هوانوردی در حال حاضر مورد استقبال زیادی قرار گرفته است.کارایی و امنیت در الویت اول طراحان لباس‌های این ورزش می‌باشد. در این مقاله به مدل‌سازی، شکل گیری و ارزیابی سطح لباس بالدار در حین پرواز پرداخته شده است. از آنجایی که لباس بالدار تحت فشار هوای داخل آن است، شکل‌گیری ساختار سطح لباس با توجه به شرایط پرواز تغییر می‌کند. هندسه سطح لباس بالدار برای ارزیابی آیرودینامیکی آن دارای اهمیت است. با توجه به نحوه دوخت لباس‌های بالدار، ساختار موج روی سطح بال بدست خواهد آمد. برای مشاهده بهتر اثرات تغییر هندسه‌ی بال بر مانور پذیری، مدل به صورت صلب انتخاب گردیده است. نتایج آزمایشگاهی روی سطح مدل نشان می‌دهد که با افزایش زوایه حمله، جریان روی سطح بال دچار افزایش بهم ریختگی در ناحیه میانی بال دست و کاهش اثرات آن در ناحیه بالایی بال پا می‌گردد. این بر همکنش جریان در مدل منجر به عملکرد متفاوت مدل در زوایای حمله مختلف می‌گردد؛ با اندازه گیری نیروهای وارده بر مدل، زاویه 15 درجه به عنوان بهترین زاویه از نظر عملکرد پرواز مدل لباس بالدار به دست آمد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

A Study of the Relationships between Pressure and Deformation of Surface on Wingsuit Performance

نویسندگان [English]

  • Mohsen Nazemian Alaei 1
  • Mohammad Sadegh Valipour 2
1 Faculty of Mechanical Engineering, Semnan University, Semnan, Iran
2 Faculty of Mechanical Engineering, Semnan University, Semnan, Iran
چکیده [English]

Wingsuit as one of the most popular sports in the field of aviation is very popular. Efficiency and safety are the first priority of the designers of this sport. In this article, the modeling, formation, and evaluation of the surface of the wingsuit during a flight are discussed. Since the wingsuit is under air pressure inside it, the formation of the structure of the surface of the suit changes according to the flight conditions. The surface of the wingsuit is important for the aerodynamic evaluation of the wingsuit model. According to the way of sewing wingsuit clothes, the wave structure will be obtained on the surface of the wing. In order to better observe the effects of changing the wing geometry on maneuverability, the model has been selected as rigid. The experimental results on the surface of the model show that with the increase of the angle of attack, the flow on the surface of the wing increases the disturbance in the middle area of the wing and reduces its effects in the upper area of the wing. This interaction of the flow structure on the model leads to the different performances of the model in different angles of attack; By measuring the forces on the model, AOA= 15 was obtained as the best angle of flight performance for the wingsuit model.

کلیدواژه‌ها [English]

  • Wingsuit
  • Flow visualization
  • Aerodynamic coefficients
  • Wind tunnel
[1] M. Abrams, Birdmen, batmen, and skyflyers Wingsuits and the pioneers who flew in them, fell in them, and perfected them, Broadway Books, (2007).
[2] R. LeBeau, D. Reasor, T. Gilliam, A. Schloemer, T. Hauser, T. Johansen, Numerical comparison of flow over bumpy inflatable airfoils, 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, (2009) 1306.
[3] W.Pulliam, R. Norris, Historical perspective on inflatable wing structures, 50th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference 17th AIAA/ASME/AHS Adaptive Structures Conference 11th AIAA No, (2009) 2145.
[4] J.D. Anderson Jr, Fundamentals of aerodynamics, 6th Ed, Tata McGraw-Hill Education ,(New York, 2016).
[5] A.S. Taleghani, A. Shadaram, M. Mirzaei, Effects of duty cycles of the plasma actuators on improvement of pressure distribution above a NLF0414 airfoil, IEEE Transactions on Plasma Science, 40(5) (2012) 1434-1440.
[6] A.S. Taleghani, Numerical and Parametric investigation of Suction over a Cylinder for Reduction of Flow Unsteadiness and vortex, Journal of mechanical engineering of Tabriz University,49(3)(2019), 183-192.(in persian)
[7] S. Abdolahipour, M. Mani, A. Shams Taleghani, Pressure Improvement on a Supercritical High-Lift Wing Using Simple and Modulated Pulse Jet Vortex Generator, Flow, Turbulence and Combustion,  (2022) 1-36.
[8] M.T. Rahni, A.S. Taleghani, M. Sheikholeslam, G. Ahmadi, Computational simulation of water removal from a flat plate, using surface acoustic waves, Wave Motion, 111 (2022) 102867.
[9] S. Shams, A. Ghanbari Motlagh, S. Abdolahipour, S.A. Seyed Shams Taleghani, Numerical Study of the Effects of Magnetohydrodynamic Field on Shock-Induced Flow Separation, Fluid Mechanics & Aerodynamics Journal, 9(2) (2021) 17-28.
[10] E. Najafi, A.S. Taleghani, S. Abdolahipour, Investigation of synthetic jet actuator position in delaying separation of a supercritical airfoil, Journal of Aeronautical Engineering, 24(1) (2022) 83-96.
[11] M. Yadegari, A. Shams Taleghani, Numerical Study of Shock-Boundary Layer Interaction on an Airfoil with Cavity and Porous Surface, Parametric Investigation in a Transonic Flow, Journal of Solid and Fluid Mechanics, 6(2) (2016) 271-284.
[12] V. Gopinathan, M. Ganesh, Passive Flow Control over NACA0012 Aerofoil using Vortex Generators, International Journal of Engineering Research & Technology, 4(9) (2015) 674-678.
[13] N. Rostamzadeh, R. Kelso, B. Dally, K. Hansen, The effect of undulating leading-edge modifications on NACA 0021 airfoil characteristics, Physics of fluids, 25(11) (2013) 117101.
[14] R. Mustak, M.N. Uddin, M. Mashud, Effect of different shaped dimples on airfoils, in:  Proceedings of the 3rd International Conference on Mechanical Engineering and Renewable Energy, (2015) 26-29.
[15] A.S. Taleghani, A. Shadaram, M. Mirzaei, S. Abdolahipour, Parametric study of a plasma actuator at unsteady actuation by measurements of the induced flow velocity for flow control, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 40(4) (2018) 1-13.
[16] D.B. Elam, Inflatable aerodynamic wing and method, in, Google Patents, (2007).
[17] G. Brown, R. Haggard, B. Norton, Inflatable structures for deployable wings, in  16th AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar, (2001) 2068.
[18] S. Smith, R. LeBeau, M. Seigler, D. Reasor, J. Jacob, D. Gleeson, S. Scarborough, Testing of compact inflatable wings for small autonomous aircraft,  49th AIAA/ASME/ASCE/AHS/ASC Structures, (2008), 2216.
[19] J. Murray, J. Pahle, S. Thornton, S. Vogus, T. Frackowiak, J. Mello, B. Norton, Ground and flight evaluation of a small-scale inflatable-winged aircraft, 40th AIAA Aerospace Sciences Meeting & Exhibit, (2002) 820.
[20] J. Xie, J.B. McGovern, R. Patel, W. Kim, S. Dutt, A.D. Mazzeo, Elastomeric actuators on airfoils for aerodynamic control of lift and drag, Advanced Engineering Materials, 17(7) (2015) 951-960.
[21] L. Liu, Y. Jia, Y. Wei, F. Hu, S. Zhang, Structural Design and Mechanical Deformation Simulation of Flexible Inflatable Wing for Miniature Missile, Journal of National University of Defense Technology, 40(6) (2018) 30-37.
[22] D. Takahashi, R. LeBeau, Computational investigation of flow over inflatable airfoils at multiple reynolds numbers, 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, (2011) 377.
[23] L.B. Liu, Y.C. Jia, Y. Wei, Structural design and mechanical deformation simulation of flexible inflatable wing for miniature missile,J Natl Univ Defense Technol, 40 (6) (2018) 30-37.
[24] T.A. Sestak, Developing a Robust Balance for Wingsuit Aerodynamic Research, Aviation / Aeronautics / Aerospace International Research Conference, (2015).
[25] C. Arijs, Mental Skills and Techniques and their Development in Extreme Sport Athletes ,The Case of Wingsuit Flying. Thesis at Department of Physical Education and Sport Sciences, University of Thessaly, Trikala, Greece, (2014).
[26] N. Ansari, S. Krzywinski, J. Fröhlich, Towards a combined CAD and CFD development process of a wingsuit, Multidisciplinary Digital Publishing Institute Proceedings, 2(6) (2018) 228.
[27] A. Kornilovich, Hybrid modeling as a tool for optimizing the design parameters of a wingsuit wing, Fundamental Research, (2013) 30-34. (in Russian).
[28] D. Merkin, Introduction to the mechanics of a flexible thread, 40 (1980). (in Russian)
[29] A.V. Kornilovich, V.E. kuzmichev, Development Of The Design Principles Of Parachute-Sports Costumes, Technology Of The Textile Industry, 6  (2016) 155-203.
[30] L.L. Chen, L. Ling, G. Zheng, Conformity design and aerodynamic analysis of inflatable wing, Adv Aeronaut Sci Eng, 06 (1) (2015) 18-25, (in Chinese)
[31] Liu LB, Yang HB, Wang DH, et al. Study on the influence rule of temperature changing for bearing stress of flexible inflatable wing skin, International Conference on Mechatronics Engineering and Computer Sciences, Shenyang, China, (2018).
[32] T.A. Sestak, The Effect of Surface Materials and Morphology on Wingsuit Aerodynamics. Dissertations and Theses, Embry-Riddle Aeronautical University Daytona Beach, Florida, (2017).
[33] N. Ansari, 3D Design and Simulation Methods for the Development of Wingsuits, TUDpress, (2019).
[34] L. Liu, F. Hu, Z. Jiang, T. Liu, Y. Xu, Study on influence of ambient temperature on biaxial stress and strength of flexible inflatable wing film, Results in Physics, 12 (2019) 85-93.
[35] Z. Jun-Tao, H. Zhong-xi, G. Zheng, C. Li-li, Analysis and flight test for small inflatable wing design, World Academy of Science, Engineering and Technology, International Journal of Aerospace and Mechanical Engineering, (2012).
[36] N. Covic, B. Lacevic, Wingsuit flying search—A novel global optimization algorithm, IEEE Access, 8 (2020) 53883-53900.
[37] M.A. Ardakani, Experimental investigation of the effect of blocking the model in the wind tunnel test room on its performance , Iranian Mechanical Engineering Research Journal, (2013) 118-130. (in Persian)