文献类型：期刊文献

英文题名：Numerical investigation of structural dimension effects on the extreme wave attenuation characteristics of floating breakwaters

作者：Lin, Jinbo[1,2];Zhu, Ziyu[1];Liu, Yang[1];Mao, Hongfei[1,2];Ma, Yingchao[1,2];Yang, Hui[1];Tian, Zhenglin[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China

年份：2026

卷号：345

外文期刊名：OCEAN ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001633318600005)、、WOS

基金：This work is supported by National Natural Science Foundation of China, China (grant number 52001071); Special Fund Competition Allocation Project of Guangdong Science and Technology Innovation Strategy, China (grant number 2023A01022); Guangdong Basic and Applied Basic Research Foundation, China (grant number 2023A1515012183); Marine Youth Talent Innovation Project of Zhanjiang (Grant No. 2024R3003); Fund of Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching (Grant NO. 2023B1212030003); Doctor Initiate Projects of Guangdong Ocean University (No. 060302072404); Student Innovation Team Project of Guangdong Ocean University (CXTD2023012); Guangdong Provincial College Students' Innovation and Entrepreneurship training Program (S202510566061).

语种：英文

外文关键词：Floating breakwater; Extreme waves; Structural dimensions; Wave attenuation characteristics; SPH

外文摘要：This study systematically explores the impact of structural dimensions on the extreme wave dissipation performance of rectangular semi-submerged floating breakwaters based on a weakly compressible Smoothed Particle Hydrodynamics (SPH) model. Model accuracy is first verified against laboratory data for submerged horizontal plates test case. Wave height comparison between calculated results and experimental data shows a good agreement. Reflection, transmission, dissipation and overtopping coefficients under solitary waves are then analyzed. The results indicate that as the relative length increases, the reflection coefficient and dissipation coefficient increase monotonically with a gradually slowing growth rate, and eventually approaches 0.5 and 0.7, while the transmission coefficient exhibits a monotonic decrease toward 0.2. Short structures are dominated by wave transmission, whereas long structures are dominated by wave reflection and dissipation. It is recommended to take a relative length of 5-10 for a floating breakwater to achieve a balance between wave attenuation capacity and economic. Meanwhile, fitting formulas for the three coefficients, that apply to solitary waves, T = 0.6 m, and L/T = 0.1-50. were proposed. The determination coefficient R2 for all fitted formulas exceeds 0.92. This study provides a support for the structural optimization of similar deep-water floating breakwaters and the design of extreme wave protection.