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Hydrodynamic performance of a porous-type land-fixed Oscillating Water Column Wave Energy Converter

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  • معلومة اضافية
    • بيانات النشر:
      Springer
    • الموضوع:
      2022
    • Collection:
      University of Exeter: Open Research Exeter (ORE)
    • نبذة مختصرة :
      This is the final version. Available from Springer via the DOI in this record. ; A hybrid, porous breakwater—Oscillating Water Column (OWC) Wave Energy Converter (WEC) system is put forward and its hydrodynamic performance is investigated using the fully nonlinear, open-source computational fluid dynamics (CFD) model, OpenFOAM. The permeable structure is positioned at the weather side of the OWC device and adjoined to its front wall. A numerical modelling approach is employed in which the interstices within the porous structure are explicitly defined. This permits the flow field development within the porous structure and at the OWC front wall to be observed. The WEC device is defined as a land-fixed, semi-submerged OWC chamber. A range of regular incident waves are generated at the inlet within the numerical tank. The OWC efficiency and the forces on the structure are examined. Results are compared for the simulation cases in which the porous component is present or absent in front of the OWC chamber. It is found that the incorporation of the porous component has minimal effect on the hydrodynamic efficiency of the OWC, reducing the efficiency by less than 5%. Nevertheless, the forces on the front wall of the OWC can be reduced by up to 20% at the higher wave steepness investigated, through inclusion of the porous structure at the OWC front wall. These findings have considerable implications for the design of hybrid OWC—breakwater systems, most importantly in terms of enhancing the durability and survivability of OWC WECs without significant loss of operational efficiency. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; Liaoning BaiQianWan Talents Program ; Engineering and Physical Sciences Research Council
    • File Description:
      1-14
    • ISSN:
      0890-5487
      2191-8945
    • Relation:
      China Ocean Engineering, 36(1); orcid:0000-0002-3792-3373 (Johanning, Lars); ScopusID: 13605483700 (Johanning, Lars); Vol. 36, No. 1, pp. 1-14; https://doi.org/10.1007/s13344-022-0008-9; 52011530183; XLYC2002033; EP/R007519/1; http://hdl.handle.net/10871/130281; China Ocean Engineering
    • الرقم المعرف:
      10.1007/s13344-022-0008-9
    • الدخول الالكتروني :
      http://hdl.handle.net/10871/130281
      https://doi.org/10.1007/s13344-022-0008-9
    • Rights:
      ©2022 The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. ; http://creativecommons.org/licenses/by/4.0/
    • الرقم المعرف:
      edsbas.9E51127