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Enhancing power conversion via wave-guiding walls for an oscillating water column device integrated into a straight coast: Normal and oblique wave incidence

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  • Wang, Chen
  • Zhang, Yongliang
  • Xu, Haochun
  • Guo, Peng
  • Yang, Huanbin

Abstract

Optimizing the utilization and design of marine infrastructure is pivotal for the innovative advancement and integration of the marine engineering sector, particularly in wave energy generation. This study investigated a cylindrical oscillating water column (OWC) device employing a U-shaped flow channel impulse turbine, integrated into a straight coast with wave-guiding walls functioning as wave-focusing structures. The performance of the wave-guiding walls was evaluated through analyzing the comprehensive wave power conversion characteristics and electrical power output under varying wave periods, incident wave angles, and turbine operating modes. Key findings include: Firstly, the highest preliminary-phase energy conversion efficiency achieved with wave-guiding walls was 1.17, representing a 140.2% improvement over configurations without wave-guiding walls. Secondly, while the subsequent-phase conversion efficiency showed low sensitivity to the presence of wave-guiding walls, notable differences were observed in the internal flow dynamics of the U-shaped flow channel and the operational characteristics of the turbine rotor. Thirdly, systems integrated into a conventional straight coast exhibited maximum electrical power output under long-period waves. In contrast, in systems with wave-guiding walls, an increased ultimate conversion efficiency in short-period waves led to the highest electrical power output. Finally, with wave-guiding walls, preliminary-phase efficiency increased significantly with the incident wave angle in short-period waves, while in long-period waves, a greater incident wave angle reduced preliminary-phase efficiency due to the stronger diffraction effects of long waves. These findings highlight the potential of wave-guiding walls to significantly enhance wave energy capture efficiency in OWC structures integrated into straight coasts, demonstrating their effectiveness and adaptability across diverse wave conditions.

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  • Wang, Chen & Zhang, Yongliang & Xu, Haochun & Guo, Peng & Yang, Huanbin, 2025. "Enhancing power conversion via wave-guiding walls for an oscillating water column device integrated into a straight coast: Normal and oblique wave incidence," Renewable and Sustainable Energy Reviews, Elsevier, vol. 216(C).
    • Handle: RePEc:eee:rensus:v:216:y:2025:i:c:s1364032125002965
    DOI: 10.1016/j.rser.2025.115623
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    1. Zhao, Xuanlie & Zhang, Lidong & Li, Mingwei & Johanning, Lars, 2021. "Experimental investigation on the hydrodynamic performance of a multi-chamber OWC-breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    2. Cheng, Yong & Du, Weiming & Dai, Saishuai & Yuan, Zhiming & Incecik, Atilla, 2024. "Wave energy conversion by an array of oscillating water columns deployed along a long-flexible floating breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 192(C).
    3. Wang, Chen & Zhang, Yongliang & Xu, Haochun & Chen, Wenchuang, 2024. "Wave power extraction from an integrated system composed of a three-unit oscillating water column array and an inclined breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 202(C).
    4. Wang, Chen & Zhang, Yongliang & Xu, Haochun & Guo, Peng & Yang, Huanbing, 2025. "Enhancing wave power focus with periodic wave-guiding walls in a three-unit oscillating water column array integrated with a vertical breakwater," Applied Energy, Elsevier, vol. 380(C).
    5. Mia, Mohammad Rashed & Zhao, Ming & Wu, Helen & Munir, Adnan, 2021. "Numerical investigation of scaling effect in two-dimensional oscillating water column wave energy devices for harvesting wave energy," Renewable Energy, Elsevier, vol. 178(C), pages 1381-1397.
    6. Liu, Zhen & Xu, Chuanli & Kim, Kilwon & Choi, Jongsu & Hyun, Beom-soo, 2021. "An integrated numerical model for the chamber-turbine system of an oscillating water column wave energy converter," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
    7. Pelc, Robin & Fujita, Rod M., 2002. "Renewable energy from the ocean," Marine Policy, Elsevier, vol. 26(6), pages 471-479, November.
    8. Daniel Raj, D. & Sundar, V. & Sannasiraj, S.A., 2019. "Enhancement of hydrodynamic performance of an Oscillating Water Column with harbour walls," Renewable Energy, Elsevier, vol. 132(C), pages 142-156.
    9. Elhanafi, Ahmed & Fleming, Alan & Macfarlane, Gregor & Leong, Zhi, 2016. "Numerical energy balance analysis for an onshore oscillating water column–wave energy converter," Energy, Elsevier, vol. 116(P1), pages 539-557.
    10. Guo, Peng & Zhang, Yongliang & Chen, Wenchuang & Wang, Chen, 2024. "Fully coupled simulation of dynamic characteristics of a backward bent duct buoy oscillating water column wave energy converter," Energy, Elsevier, vol. 294(C).
    11. Zhou, Binzhen & Wang, Yu & Zheng, Zhi & Jin, Peng & Ning, Dezhi, 2023. "Power generation and wave attenuation of a hybrid system involving a heaving cylindrical wave energy converter in front of a parabolic breakwater," Energy, Elsevier, vol. 282(C).
    12. Guo, Peng & Zhang, Yongliang & Chen, Wenchuang, 2023. "Numerical analysis on a self-rectifying impulse turbine with U-shaped duct for oscillating water column wave energy conversion," Energy, Elsevier, vol. 274(C).
    13. Wang, Chen & Zhang, Yongliang, 2021. "Numerical investigation on the wave power extraction for a 3D dual-chamber oscillating water column system composed of two closely connected circular sub-units," Applied Energy, Elsevier, vol. 295(C).
    14. Mayon, Robert & Ning, Dezhi & Zhang, Chongwei & Chen, Lifen & Wang, Rongquan, 2021. "Wave energy capture by an omnidirectional point sink oscillating water column system," Applied Energy, Elsevier, vol. 304(C).
    15. Liberti, Luca & Carillo, Adriana & Sannino, Gianmaria, 2013. "Wave energy resource assessment in the Mediterranean, the Italian perspective," Renewable Energy, Elsevier, vol. 50(C), pages 938-949.
    16. Liu, Zhen & Xu, Chuanli & Qu, Na & Cui, Ying & Kim, Kilwon, 2020. "Overall performance evaluation of a model-scale OWC wave energy converter," Renewable Energy, Elsevier, vol. 149(C), pages 1325-1338.
    17. Iglesias, G. & Carballo, R., 2014. "Wave farm impact: The role of farm-to-coast distance," Renewable Energy, Elsevier, vol. 69(C), pages 375-385.
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