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Experimental and numerical investigation of the energy harvesting flexible flag in the wake of a bluff body

  • Latif, Usman (Department of Mechanical Engineering, SMME, National University of Sciences and Technology (NUST)) ;
  • Abdullah, Chaudary (Department of Mechanical Engineering, SMME, National University of Sciences and Technology (NUST)) ;
  • Uddin, Emad (Department of Mechanical Engineering, SMME, National University of Sciences and Technology (NUST)) ;
  • Younis, M. Yamin (Department of Mechanical Engineering, Mirpur University of Science and Technology (MUST)) ;
  • Sajid, Muhamad (Department of Mechanical Engineering, SMME, National University of Sciences and Technology (NUST)) ;
  • Shah, Samiur Rehman (Department of Mechanical Engineering, SMME, National University of Sciences and Technology (NUST)) ;
  • Mubasha, Aamir (Mechanical Engineering Program, Middle East Technical University Northern Cyprus Campus)
  • Received : 2017.11.02
  • Accepted : 2018.01.18
  • Published : 2018.05.25
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Abstract

Inspired by the energy harvesting eel, a flexible flag behind a D-shape cylinder in a uniform viscous flow was simulated by using the immersed boundary method (IBM) along with low-speed wind tunnel experimentation. The flag in the wake of the cylinder was strongly influenced by the vortices shed from the upstream cylinder under the vortex-vortex and vortex-body interactions. Geometric and flow parameters were optimized for the flexible flag subjected to passive flapping. The influence of length and bending coefficient of the flexible flag, the diameters (D) of the cylinder and the streamwise spacing between the cylinder and the flag, on the energy generation was examined. Constructive and destructive vortex interaction modes, unidirectional and bidirectional bending and the different flapping frequency were found which explained the variations in the energy of the downstream flag. Voltage output and flapping behavior of the flag were also observed experimentally to find a more direct relationship between the bending of the flag and its power generation.

Keywords

Acknowledgement

Supported by : NRPU

References

  1. Abdelkefi, A. (2016), "Aeroelastic energy harvesting: A review", Int. J. Eng. Sci., 100, 112-135. https://doi.org/10.1016/j.ijengsci.2015.10.006
  2. Allen, J.J. and Smits, A.J. (2001), "Energy harvesting eel", J. Fluids Struct., 15(3-4), 629-640. https://doi.org/10.1006/jfls.2000.0355
  3. Arthouros, Z. (2014), Renewables 2014 global status report. RENS 21
  4. Barrero-Gil, A., Alonso, G. and Sanz-Andres, A. (2010), "Energy harvesting from transverse galloping", J. Sound Vib., 329(14), 2873-2883. https://doi.org/10.1016/j.jsv.2010.01.028
  5. Baz, A. and Ro, J. (1991), "Active control of flow induced vibrations of a flexible cylinder using direct velocity feedback", J. Sound Vib., 4, 313.
  6. Bernitsas, M.M., Raghavan, K., Ben-Simon, Y. and Garcia E.M. (2008), "VIVACE (Vortex Induced Vibration Aquatic Clean Energy): A new concept in generation of clean and renewable energy from fluid flow", J. Offshore Mech. Arct., 130(4), 041101. https://doi.org/10.1115/1.2957913
  7. Bin, Q., Alam M.M. and Zhou, Y. (2017), "Two tandem cylinders of different diameter in cross-flow: flow-induced vibration", J. Fluids Mech., 829, 621-658. https://doi.org/10.1017/jfm.2017.510
  8. Dai, H.L., Abdelkefi, A. and Wang, L. (2014), "Theoretical modelling and nonlinear analysis of piezoelectric energy harvesting from vortex induced vibrations", J. Intel. Mat. Syst. Struct., 25, 1861. https://doi.org/10.1177/1045389X14538329
  9. Eldredge, J.D. (2008), "Dynamically coupled fluid-body interactions in vorticity-based numerical simulations", J. Comput. Phys., 227(21), 9170-9194. https://doi.org/10.1016/j.jcp.2008.03.033
  10. Ge, M. (2016), "Numerical investigation of flow characteristics over dimpled surface", Int. J. Therm. Sci., 20(3), 903-906.
  11. Govardhan, R. and Williamson, C.H.K. (2004), "Critical mass in vortex-induced vibration of a cylinder", Eur. J. Mech. B/Fluids, 23, 17. https://doi.org/10.1016/j.euromechflu.2003.04.001
  12. Grue, J., Asbjorn, M. and Enok, P. (1988), "Propulsion of a foil moving in water waves", J. Fluid Mech., 186, 393-417. https://doi.org/10.1017/S0022112088000205
  13. Hartong, J.P.D. (1984), Mechanical Vibrations, New York: McGraw-Hill
  14. Huang, WX., Shin, S.J. and Sung, H.J. (2007), "Simulation of flexible filaments in a uniform flow by the immersed boundary method", J. Comput. Phys., 226(2):2206-2228. https://doi.org/10.1016/j.jcp.2007.07.002
  15. Isshiki, H. and Murakami, M. (1984), "A theory of wave devouring propulsion (4th report)", J. Soc. Naval Archit. Japan, 156, 102-114.
  16. Johnson, T. and Patel, V. (1999), "Flow past a sphere up to a Reynolds number of 300", J. Fluid Mech., 378, 19-70. https://doi.org/10.1017/S0022112098003206
  17. Khalak, A. and Williamson, C.H.K. (1997), "Investigation of the relative effects of mass and damping in vortex-induced vibration of a circular cylinder", J. Wind Eng. Ind. Aerod., 69, 341-350.
  18. Liao, J.C., Beal, D.N., Lauder, G.V. and Triantafyllou, M.S. (2003), "Fish exploiting vortices decrease muscle activity", Science, 302(5650), 1566-1569. https://doi.org/10.1126/science.1088295
  19. Matsumoto, M. (2005), "Flutter instability of structures", Proceedings of the 4th European and African conference on wind engineering, 6-11
  20. Matsumoto, M., Okubo, K., Ito, Y., Matsumiya, H. and Kim, G. (2006), "Fundamental study on the efficiency of flutter power generation system", Proceedings of the ASME2006 Pressure Vessels and Piping/ICPVT-11 Conference. American Society of Mechanical Engineers.
  21. McKinney, W. and DeLaurier, J. (1981), "The wingmill: an oscillating-wing windmill", J. Energy, 5(2), 109-115. https://doi.org/10.2514/3.62510
  22. Panton, R.L. (2005), Incompressible Flow, Wiley.
  23. Peng, Z. and Qiang, Z. (2009), "Energy harvesting through flowinduced oscillations of a foil", Phys. Fluids, 21(12), 123602. https://doi.org/10.1063/1.3275852
  24. Sakamoto, H. and Haniu, H., (1990), "A study of vortex shedding from spheres in uniform flow", J. Fluids Eng., 112, 386-393. https://doi.org/10.1115/1.2909415
  25. Shoele, K. and Mittal, R. (2016), "Energy harvesting by flowinduced flutter in a simple model of an inverted piezoelectric flag", 790, 582-606 https://doi.org/10.1017/jfm.2016.40
  26. Singh, K., Sebastien, M. and Emmanuel D.L. (2012), "The effect of non-uniform damping on flutter in axial flow and energyharvesting strategies", Proc. R. Soc. A, 468(2147), 3620-3635. https://doi.org/10.1098/rspa.2012.0145
  27. Taneda, S. (1978), "Visual observations of the flow past a sphere at Reynolds numbers between 104 and 106", J. Fluid Mech., 85, 187-192. https://doi.org/10.1017/S0022112078000580
  28. Tian, F.B., Luo, H., Zhu, L. and Lu, X.Y. (2011), "Coupling modes of three filaments in side-by-side arrangement", Phys. Fluids, 23, 111903 https://doi.org/10.1063/1.3659892
  29. Triantafyllou, M.S., Alexandra H.T. and Franz S.H. (2004), "Review of experimental work in biomimetic foils", IEEE J. Oceanic Eng., 29(3), 585-594. https://doi.org/10.1109/JOE.2004.833216
  30. Uddin, E. and Sung, H.J. (2011), "Simulation of flow-flexible body interactions with large deformation", Int. J. Numer. Meth. Fl., 21(9). 1089-1102.
  31. Uddin, E., Huang, W.X. and Sung, H.J. (2013), "Interaction modes of multiple flexible flags in a uniform flow", J. Fluid Mech., 729, 563-583. https://doi.org/10.1017/jfm.2013.314
  32. Uddin, E., Huang, W.X. and Sung, H.J. (2015), "Actively flapping tandem flexible flags in a viscous flow", J. Fluid Mech., 780, 120-142 https://doi.org/10.1017/jfm.2015.460
  33. van Dyke, M. (1982), An Album of Fluid Motion, Parabolic Press, 28-31.
  34. Wu, T.Y. (1971), "Extraction of flow energy by a wing oscillating in waves", J. Ship Res., 66-78
  35. Wu, T.Y. and Chwang, A.T. (1975), Swimming and flying in nature, volume 2. Springer Science+Business Media, LLC, New York, NY, USA.
  36. Xu, Y.Q., Wang, M.Y., Liu, Q.Y., Tang, S.Y. and Tian, F.B. (2018), "External force-induced focus pattern of a flexible filament in a viscous fluid", Appl. Math. Model., 53, 369-383 https://doi.org/10.1016/j.apm.2017.09.001
  37. Zhu, L. (2009), "Interaction of two tandem deformable bodies in a viscous incompressible flow", J. Fluid Mech., 635, 455-475. https://doi.org/10.1017/S0022112009007903
  38. Zhu, Q., Wolfgang, M.J., Yue, D.K.P. and Triantafyllou, M.S. (2002), "Three-dimensional flow structures and vorticity control in fish-like swimming", J. Fluid Mech., 468, 1-28.

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