文献类型：期刊文献

英文题名：Wave attenuation bandgaps of finite-length periodic wave-absorbing structures

作者：Tian, Zhenglin[1,2];Wang, Jiajun[1];Zhou, Zhongbing[1];Lin, Xibing[1];He, Dongbin[1];Lin, Jinbo[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：343

外文期刊名：OCEAN ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001622576000001)、、WOS

基金：The numerical modeling used in this paper is developed based on the open source OpenFoam development platform. The authors are grateful to the anonymous reviewers for their valuable comments and sugges-tions. This work received funding from the Guangdong Basic and Applied Basic Research Foundation (No. 2023A1515012183, 2025A1515010961) and the Special Fund Competition Allocation Project of Guangdong Science and Technology Innovation Strategy (Grant No. 2023A01022) .

语种：英文

外文关键词：Periodic structures; Wave absorption; Hydrodynamic characteristics; Structure width; Bandgaps

外文摘要：Periodic wave-absorbing structures (PWS) play a crucial role in modulating hydrodynamics and enhancing wave energy dissipation through boundary-induced fluid interactions. However, their influence on wave dynamics has not been sufficiently examined in existing computational frameworks. In this study, a numerical wave-structure interaction model based on OpenFOAM is developed to investigate wave reflection, transmission, energy dissipation, and flow characteristics around PWS. The mechanisms through which structural parameters affect hydrodynamic performance are systematically analyzed. Results indicate that the wave reflection coefficient of PWS exhibits a weak dependence on structural width within the range of relative widths (B/7 = 0.5-2.0, where B is the structure width and 7 is the wavelength), whereas the wave transmission coefficient decreases monotonically as the structural width increases. However, this decrease becomes notably slower once the structural width exceeds one wavelength. Similarly, the wave energy dissipation coefficient increases with the structural width, but its growth rate gradually declines and approaches a plateau when the width exceeds 0.757. Furthermore, two distinct pseudo-bandgaps are observed in PWS when the wave energy dissipation level reaches 0.8.