Wave Attenuation Performance and the Influencing Factors of A Lower Arc-Plate Breakwater

查看全文 作　　者：LI Xue-[1,2,3]yan;WANG [1]Qing;YOU Zai-[2]jin;GUO Wei-[4]jun;ZHANG Jun-[1]bin;ZHAN [1]Chao;ZHANG Zhi-[1]chen;WANG Li-[1]xue;LI [1]Qin

机构地区：[1]Coast Institute,Ludong University,Yantai 264025,China;[2]Dalian Maritime University,Dalian 116026,China;[3]Institute of Sea-Crossing Engineering,Ludong University,Yantai 264024,China;[4]College of Environmental Sciences and Engineering,Dalian Maritime University,Dalian 116026,China

出　　处：《China Ocean Engineering》索引2020年第34卷第1期,共10页

基　　金：supported by the NSFC-Shandong Joint Fund(Grant Nos.U1706220 and U1806227);the National Natural Science Foundation of China(Grant Nos.51709140 and 51879019);the Key Laboratory of Coastal Disasters and Defence of Ministry of Education(Grant No.201703) 摘　　要：Comprehensive experimental and numerical studies have been undertaken to investigate wave energy dissipation performance and main influencing factors of a lower arc-plate breakwater. The numerical model, which considers nonlinear interactions between waves and the arc-plate breakwater, has been constructed by using the velocity wave- generating method, the volume of fluid (VOF) method and the finite volume method. The results show that the relative width, relative height and relative submergence of the breakwater are three main influencing factors and have significant influence on wave energy dissipation of the lower arc-plate open breakwater. The transmission coefficient is found to decrease with the increasing relative width, and the minimum transmission coefficient is 0.15 when the relative width is 0.45. The reflection coefficient is found to vary slightly with the relative width, and the maximum reflection coefficient is 0.53 when the relative width is 0.45. The transmission and reflection coefficients are shown to increase with the relative wave height for approximately 85% of the experimental tests when the relative width is 0.19 0.45. The transmission coefficients at relative submergences of 0.04, 0.02 and 0 are clearly shown to be greater than those at relative submergences of 0.02 and 0.04, while the reflection coefficient exhibits the opposite relationship. After the wave interacts with the lower arc-plate breakwater, the wave energy is mainly converted into transmission, reflection and dissipation energies. The wave attenuation performance is clearly weakened for waves with greater heights and longer periods. 关键词：arc-plate breakwater wave attenuation performance influencing factors VOF method

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Wave Attenuation Performance and the Influencing Factors of A Lower Arc-Plate Breakwater

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