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The effect of flap thickness on the hydrodynamic performance of an oscillating wave surge converter
Abstract
With the growing demand for energy and the need to transition to renewable sources, ocean wave energy presents great potential. The Oscillating Wave Surge Converter (OWSC) is a promising technology due to its nearshore applicability, structural simplicity, and robust design. This study systematically investigates the effect of flap thickness on the dynamic performance of a hinge-mounted OWSC using the Boundary Element Method (BEM).  The research models the hydrodynamic interactions and analyzes the effects of three different flap thicknesses on key metrics, including maximum angle deviation, angular velocity, torque, and power capture. The results indicate that all flap variations demonstrate stable oscillatory movement, but greater flap thickness reduces the maximum angle deviation due to increased inertia and hydrostatic pressure. A resonant peak was observed for all thicknesses at a wave period of 1.3 seconds, where energy transfer was maximized. At this frequency, the thickest flap achieved the highest efficiency (78.94%), followed by the intermediate (77.50%) and thinnest (70.77%) variations. The findings suggest that while flap thickness influences efficiency, the primary factor for maximizing energy capture is the alignment of the wave period with the device's natural frequency.
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M. Li et al., “State-of-the-art review of the flexibility and feasibility of emerging offshore and coastal ocean energy technologies in East and Southeast Asia,†Renewable and Sustainable Energy Reviews, vol. 162, p. 112404, Jul. 2022, doi: 10.1016/J.RSER.2022.112404.
A. F. O. de Falcão, “Wave energy utilization: A review of the technologies,†Renewable and Sustainable Energy Reviews, vol. 14, no. 3, p. 899, Jan. 2010, Accessed: Aug. 18, 2025. [Online]. Available: https://commons.wmu.se/lib_articles/62
H. Bouhrim, A. El Marjani, R. Nechad, and I. Hajjout, “Ocean Wave Energy Conversion: A Review,†J Mar Sci Eng, vol. 12, no. 11, Nov. 2024, doi: 10.3390/JMSE12111922.
D. Golbaz et al., “Layout and design optimization of ocean wave energy converters: A scoping review of state-of-the-art canonical, hybrid, cooperative, and combinatorial optimization methods,†Energy Reports, vol. 8, pp. 15446–15479, Nov. 2022, doi: 10.1016/J.EGYR.2022.10.403.
Z. M. Yusop, M. Z. Ibrahim, M. A. Jusoh, A. Albani, and S. J. A. Rahman, “Wave-Activated Body Energy Converter Technologies: A Review,†Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 76, no. 1, pp. 76–104, 2020, doi: 10.37934/ARFMTS.76.1.76104.
Y. Liu, N. Mizutani, Y. H. Cho, and T. Nakamura, “Nonlinear hydrodynamic analysis and optimization of oscillating wave surge converters under irregular waves,†Ocean Engineering, vol. 250, p. 110888, Apr. 2022, doi: 10.1016/J.OCEANENG.2022.110888.
E. Amini et al., “Comparative Study of Oscillating Surge Wave Energy Converter Performance: A Case Study for Southern Coasts of the Caspian Sea,†Sustainability 2021, Vol. 13, Page 10932, vol. 13, no. 19, p. 10932, Oct. 2021, doi: 10.3390/SU131910932.
Y. Liu, Y. H. Cho, N. Mizutani, and T. Nakamura, “Study on the resonant behaviors of a bottom-hinged oscillating wave surge converter,†J Mar Sci Eng, vol. 10, no. 1, Jan. 2022, doi: 10.3390/JMSE10010002.
G. F. Vargas, E. B. C. Schettini, and B. A. Scapin, “Dynamics of an oscillating wave surge converter: an analysis on the influence of the bottom slope,†South Florida Journal of Development, vol. 4, no. 1, pp. 330–343, Feb. 2023, doi: 10.46932/sfjdv4n1-024.
Y. Lin and F. Pei, “Numerical study on bottom-hinged plate wave energy converter geometry design,†Ocean Engineering, vol. 260, p. 112050, Sep. 2022, doi: 10.1016/J.OCEANENG.2022.112050.
J. Cui, X. Chen, and S. Dai, “Numerical study on dual oscillating wave surge converter with different cross-section shapes using SPH under regular waves,†Ocean Engineering, vol. 271, p. 113755, Mar. 2023, doi: 10.1016/J.OCEANENG.2023.113755.
J. N. Newman, “Marine Hydrodynamics, 40th edition,†The MIT Press Cambridge, Massachusetts London, England, p. 450, 2018, Accessed: Aug. 18, 2025. [Online]. Available: https://mitpress.mit.edu/9780262534826/marine-hydrodynamics/
B. Teng and Y. Gou, “BEM for wave interaction with structures and low storage accelerated methods for large scale computation,†Journal of Hydrodynamics 2017 29:5, vol. 29, no. 5, pp. 748–762, Oct. 2017, doi: 10.1016/S1001-6058(16)60786-2.
E. J. Sellountos, T. V. Gortsas, and D. Polyzos, “A local domain boundary element method for solving 2D incompressible fluid flow problems,†Eng Anal Bound Elem, vol. 150, pp. 457–481, May 2023, doi: 10.1016/J.ENGANABOUND.2023.02.012.
B. Drew, A. R. Plummer, and M. N. Sahinkaya, “A review of wave energy converter technology,†Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, vol. 223, no. 8, pp. 887–902, Dec. 2009, doi: 10.1243/09576509JPE782;PAGE:STRING:ARTICLE/CHAPTER.
P. J. Roache, “Perspective: A Method for Uniform Reporting of Grid Refinement Studies,†J Fluids Eng, vol. 116, no. 3, pp. 405–413, Sep. 1994, doi: 10.1115/1.2910291.
Y. Wei, T. Abadie, A. Henry, and F. Dias, “Wave interaction with an Oscillating Wave Surge Converter. Part II: Slamming,†Ocean Engineering, vol. 113, pp. 319–334, Feb. 2016, doi: 10.1016/j.oceaneng.2015.12.041.
M. Kelly, N. Tom, Y.-H. Yu, R. Thresher, and N. Abbas, “Development of the Second-Generation Oscillating Surge Wave Energy Converter With Variable Geometry,†Jun. 25, 2017, OnePetro. Accessed: Aug. 18, 2025. [Online]. Available: https://dx.doi.org/
H. N. Nguyen, “Is the Velocity Always in Phase with the Wave Excitation Force in Constrained Optimal Control of Wave Energy Converters?,†IFAC-PapersOnLine, vol. 56, no. 2, pp. 2632–2637, Jul. 2023, doi: 10.1016/J.IFACOL.2023.10.1352.
R. A. Anggara, J. Julian, F. Wahyuni, R. H. Purba, and N. T. Bunga, “Investigation of Flap Dimensional Parameters to Improve Hydrodynamic Performance of Oscillating Wave Surge Converter Device,†Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi, vol. 7, no. 1, pp. 59–70, Jan. 2025, doi: 10.35814/ASIIMETRIK.V7I1.7911.
DOI: http://dx.doi.org/10.30811/jpl.v23i6.7682
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