Effect of aspect ratio on hydrokinetic energy harnessing using cylinders in VIV

Journal of Ocean Engineering and Marine Energy - Tập 8 - Trang 217-232 - 2022
Aytekin Duranay1,2, Omer Kemal Kinaci1,3, Michael M. Bernitsas4,5,6
1Faculty of Naval Architecture and Ocean Engineering, Istanbul Technical University, Istanbul, Turkey
2Naval Architecture and Maritime Faculty, Izmir Katip Celebi University, Izmir, Turkey
3Marine Cybernetics Advanced Vehicle Technologies (MARNETICS), Istanbul, Turkey
4Marine Renewable Energy Laboratory, Department of Naval Architecture and Marine Engineering, University of Michigan, Ann Arbor, USA
5Department of Naval Architecture and Marine Engineering, Department of Mechanical Engineering, University of Michigan, Ann Arbor, USA
6CTO Vortex Hydro Energy, Ann Arbor, USA

Tóm tắt

Smooth, rigid, circular cylinders on elastic support in flow perpendicular to their axis undergo vortex-induced vibrations (VIV) over a broad range of velocities. VIV converts hydrokinetic energy to mechanical in the oscillating cylinder. Tip-flow introduces three dimensional effects reducing the effective length of the cylinder which provides the transverse lift force to induce oscillations and consequently the energy in the oscillator. In this study, we investigate experimentally the effect of the cylinder aspect ratio on hydrokinetic energy harnessing. Experiments are conducted in the Reynolds number range 15,000 < Re < 80,000 falling in two different flow regimes: TrSL2 (Transition Shear Layer 2: 1000 < Re < 40,000) and TrSL3 (40,000 < Re < 300,000). Converted power and maximum system efficiencies are calculated from experiments conducted in the recirculation channel of the Flow Induced Motions Laboratory, Istanbul Technical University (ITU FIMLab). It was found that the end-zones of the cylinder, which do not induce lift due to tip flow, are more dominant in lower aspect ratio cylinders. More power can be captured from TrSL3 flows due to higher shear-flow momentum. Higher efficiency in power conversion is achieved in TrSL2.

Tài liệu tham khảo

Aquaret (2012) http://www.aquaret.com/index1a20.html?option=com_content&view=article&id=133&Itemid=276&lang=en Accessed 28 Jul 2021. Assi GR, Bearman PW, Kitney N (2009) Low drag solutions for suppressing vortex-induced vibration of circular cylinders. J Fluids Struct 25(4):666–675 Barrero-Gil A, Pindado S, Avila S (2012) Extracting energy from vortex-induced vibrations: a parametric study. Appl Math Model 36(7):3153–3160 Bearman PW (2011) Circular cylinder wakes and vortex-induced vibrations. J Fluid Struct 27(5):648–658 Bernitsas MM (2016) Harvesting energy by flow included motions, Chapter 47. In: Dhanak MR, Xiros NI (eds) Springer handbook of ocean engineering. Springer, Berlin, pp 1163–1244 Bernitsas MM, Raghavan K, Ben-Simon Y, Garcia EMH (2008) VIVACE (Vortex Induced Vibration Aquatic Clean Energy): A new concept in generation of clean and renewable energy from fluid flow. J Offshore Mech Arctic Eng. https://doi.org/10.1115/1.2957913 Bernitsas MM, Ofuegbe J, Chen J-U, Sun H (2019) Eigen-Relation for Flow Induced Oscillations (VIV & Galloping) Revealed at the Fluid-Structure Interface. In: Proceedings of the 38th OMAE 2019 Conf., Paper #96823, Glasgow, Scotland, June 9–14, 2019 Bernoulli D (1738) Hydrodynamica. Dulsecker. Consultable en ligne. http://imgbase-scd-ulp.u-strasbg.fr/displayimage.php Betz A (1966) Introduction to the theory of flow machines. Pergamon Press, Oxford Dai HL, Abdelkefi A, Yang Y, Wang L (2016) Orientation of bluff body for designing efficient energy harvesters from vortex-induced vibrations. Appl Phys Lett 108:053902 ITTC Recommendations and Procedures (2014) General guideline for uncertainty analysis in resistance tests. Report no: 7.5-02-02-02 Ji C, Xu W, Sun H, Wang R, Ma C, Bernitsas MM (2018) Interactive flow-induced vibrations of two staggered, low mass-ratio cylinders in the TrSL3 Flow Regime (2.5×104<Re<1.2×105): Smooth Cylinders. J Offshore Mech Arctic Eng 140(4):041801 Kim ES, Bernitsas MM (2016) Performance prediction of horizontal hydrokinetic energy converter using multiple-cylinder synergy in flow induced motion. Appl Energy 170:92–100 Kim ES, Park H, Sun H, Sung-chul Shin SC, Dae-Seung Cho DS, Bernitsas MM (2021) Development of an alternating lift converter utilizing flow induced oscillations to harness horizontal hydrokinetic energy. Renew Sustain Energy Rev 145:111094 Kinaci OK, Lakka S, Sun H, Bernitsas MM (2016) Effect of tip-flow on vortex induced vibration of circular cylinders for Re< 1.2*105. Ocean Eng 117:130–142 Kumar RA, Sohn CH, Gowda BHL (2008) Passive control of vortex-induced vibrations: an overview. Recent Pat Mech Eng 1(1):1–11 Lee JH, Bernitsas MM (2011) High-damping, high-Reynolds VIV tests for energy harnessing using the VIVACE converter. Ocean Eng 38(16):1697–1712 Lee JH, Xiros N, Bernitsas MM (2011) Virtual damper-spring system for VIV experiments and hydrokinetic energy conversion. Ocean Eng 38(5–6):732–747 Lv Y, Sun L, Bernitsas MM, Sun H (2021) A Comprehensive review of nonlinear oscillators in hydrokinetic energy harnessing using flow-induced vibrations. Renew Sustain Energy Rev 150:111388 Paidoussis MP, Price SJ, de Langre E (2011) Fluid-structure interactions. Cambridge University Press, New York Park H, Bernitsas MM, Kim ES (2014) Selective surface roughness to suppress flow-induced motion of two circular cylinders at 30,000<Re<120,000. J Offshore Mech Arctic Eng. Doi 10(1115/1):4028061 Raghavan K, Bernitsas MM (2011) Experimental investigation of Reynolds number effect on vortex induced vibration of rigid circular cylinder on elastic supports. Ocean Eng 38(5–6):719–731 Sarpkaya T (2004) A critical review of the intrinsic nature of vortex induced vibration of circular cylinders. J Fluids Struct 19(4):389–447 Soti AK, Thompson MC, Sheridan J, Bhardwaj R (2017) Harnessing electrical power from vortex-induced vibration of a circular cylinder. J Fluid Struct 70:360–373 Sumer BM, Fredsoe J (1997) Hydrodynamics around cylindrical structures, vol 12. World Scientific, Singapore Sun H, Kim ES, Nowakowski G, Erik Mauer E, Bernitsas MM (2016) Effect of mass-ratio, damping, and stiffness on optimal hydrokinetic energy conversion of a single, rough cylinder in flow induced motions. Renewable Energy 99:936–959 Sun H, Bernitsas MP, Kim ES, Bernitsas MM (2015) Virtual spring-damping system for fluid induced motion experiments. In: Proceedings of 34th OMAE 2015, #42179, St. John's, Newfoundland, Canada, May 31–June 5, 2015; Journal of Offshore Mechanics and Arctic Engineering, ASME Trans 137(1):061801 Unal MF, Lin JC, Rockwell D (1997) Force prediction by PIV imaging: a momentum-based approach. J Fluids Struct 11(8):965–971 Usta O, Duranay A (2021) Uncertainty analysis of experiments of vortex-induced vibrations for circular cylinders. J Appl Fluid Mech 14(2):541–553 Vinod A, Banerjee A (2014) Surface protrusion based mechanisms of augmenting energy extraction from vibrating cylinders at Reynolds number 3× 103–3× 104. J Renew Sustain Energy 6(6):063106 Vortex Hydro Energy (2020) https://www.vortexhydroenergy.com/ Accessed 28 Jul 2021 Wave Energy Scotland (2015). https://www.waveenergyscotland.co.uk/news-events/wave-energy-intellectual-property-to-be-retained-in-scotland/ Accessed 28 Jul 2021 Williamson CHK, Govardhan R (2004) Vortex-induced vibrations. Annu Rev Fluid Mech 36:413–455 Xu W, Ji C, Sun H, Ding W, Bernitsas MM (2019) Flow-induced vibration of two elastically mounted tandem cylinders in cross-flow at subcritical Reynolds numbers. Ocean Eng 173:375–387 Zdravkovich MM (1997) Flow around circular cylinders: volume 2: applications, vol 2. Oxford University Press, Oxford