Wave farm impact on the beach profile: A case study |
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| Institution: | 1. Environmental Hydraulics Institute “IH Cantabria”, Universidad de Cantabria, C/Isabel Torres 15 Parque Cientifico y Tecnologico de Cantabria, 39011 Santander, Spain;2. School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth, Devon, PL8 4AA, UK;1. Port and Airport Research Institute, Nagase 3-1-1, Yokosuka, Kanagawa 239-0826, Japan;2. Praia Co., Ltd., Hisamoto 3-5-7, Shin-Mizonokuchi Bldg., Takatsu-ku, Kawasaki, Kanagawa 213-0011, Japan;1. Department of Mechanical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark;2. Department of Wind Energy, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark;1. Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia;2. Coastal and Offshore Engineering Institute (COEI), Universiti Teknologi Malaysia Kuala Lumpur, Jalan Semarak, 54100 Kuala Lumpur, Malaysia;3. School of Marine Science and Technology (Faculty of Science and Technology), University of Plymouth, Drake Circus, PL4 8AA Plymouth, United Kingdom;4. Centro de Investigación Científica y Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, Zona Playitas, C.P. 22860 Ensenada, B.C. México |
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| Abstract: | If wave energy is to become a fully-fledged renewable, its environmental impacts must be fully understood. The objective of the present work is to examine the impact of a wave farm on the beach profile through a case study. The methodology is based on two coupled numerical models: a nearshore wave propagation model and a morphodynamic model, which are run in two scenarios, both with and without the wave farm. Wave data from a nearby coastal buoy are used to prescribe the boundary conditions. A positive effect on the wave climate, the cross-shore sediment transport and, consequently, the evolution of the beach profile itself due to the presence of the wave farm was found. The wave farm leads to a reduction in the erosion of the beach face. This work constitutes the first stage of the investigation of the effectiveness of a wave farm as a coastal defence measure, and the accuracy of the quantification of the erosion reduction will be enhanced in future research. In any case, the overarching picture that emerges is that wave farms, in addition to providing carbon-free energy, can be used as elements of a coastal defence scheme. |
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