A model for obliquely incident wave interacting with a multi-layered object |
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| Affiliation: | 1. Department of Civil and Environmental Engineering, National University of Singapore, Singapore;2. School of Civil and Environmental Engineering, Cornell University, USA;3. Institute of Hydrological and Oceanic Sciences, National Central University, Taiwan;4. Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao, China;1. Department of Water Resources and Ocean Engineering, National Institute of Technology, Surathkal, Karnataka 575025, India;2. Coastal Management Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait;3. Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai 600036, India;4. Department of Civil Engineering, College of Engineering and Petroleum, Kuwait University, Kuwait;1. Faculty of Technology and Maritime Science, University of Southeast Norway, Tønsberg, Norway;2. Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway;1. Department of Civil and Environmental Engineering, National University of Singapore, Singapore;2. School of Civil and Environmental Engineering, Cornell University, USA;3. Institute of Hydrological and Oceanic Sciences, National Central University, Taiwan;4. School of Marine Science, Sun Yat-Sen University, Guangzhou, China;5. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China |
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| Abstract: | This paper presents an analytical solution for scattering of oblique incident, small amplitude, monochromatic wave trains by a stationary rigid multi-layered objects with rectangular cross-section. The object is infinite long and consists of multilayers, which can be either solid or permeable. This paper extends the previous work by Hu and Liu [1] from normal incident wave condition with a special object configuration to oblique incident waves with multi-layered object. The present model is validated with several existing solutions for normal/oblique waves interacting with a single object; excellent agreement is observed. New numerical results are presented to investigate the effects of incidence angle on reflection, transmission and energy loss coefficients for a combined floating and bottom-mounted permeable breakwater. A new floating board-cage breakwater is developed from the present model and its solutions are discussed in detail. A computer program, AWAS-P, has been updated so that it is applicable for both oblique and normal incident waves, while the object is multi-layered. |
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| Keywords: | Multi-layered permeable breakwater Obliquely incident wave BEM method Reflection/transmission coefficient Potential decomposition Aquaculture |
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