文献类型：期刊文献

英文题名：Calculation and analysis of wave loads and hydrodynamic coefficients on submerged floating tunnels with various cross-sections

作者：Mao, Hong-Fei[1,2];Zheng, Wei-Jiang[2,3];Yang, Qin-Ru[4];Zhou, Zhong-Bing[1];Tian, Zheng-Lin[1];Han, Long[1,2];Wu, Guang-Lin[1];Lin, Jin-Bo[1,2]

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;[3]Guangdong Ocean Univ, Coll Naval Architecture & Shipping, Zhanjiang 524088, Peoples R China;[4]Hengli Shipbuilding Co Ltd, Technol Dept, Dalian 116300, Liaoning, Peoples R China

年份：2025

卷号：326

外文期刊名：OCEAN ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001444099400001)、、EI(收录号：20251018011284)、Scopus(收录号：2-s2.0-86000142858)、WOS

基金：This work was financially supported by the National Natural Science Foundation of China [Grant number 52001071] , Guangdong Basic and Applied Basic Research Foundation [Grant number 2023A1515010890, 2023A1515012183] , the Special Fund Competition Allocation Project of Guangdong Science and Technology Innovation Strategy [Grant number 2023A01022] , the Fund of Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching [Grant NO.r 2023B1212030003] , the Doctor Initiate Projects of Guangdong Ocean University [grant number 120601-060302072403] .

语种：英文

外文关键词：Submerged floating tunnel; Cross-sectional shape; Aspect ratio; Wave force; Hydrodynamic coefficient

外文摘要：In this study, a numerical wave tank based on the viscous flow theory was used to conduct numerical calculations and analyses on the influences of cross-sectional shape on the wave loads and hydrodynamic coefficients on a submerged floating tunnel. In two-dimensional space, the wave forces on the main tube section of the submerged floating tunnel were calculated under various cross-sectional shapes, aspect ratios, and incident wave conditions. The load characteristics were analyzed through flow field distribution and force decomposition. The hydrodynamic coefficients were obtained by solving the Morison's equation with the numerical results, and the fitted curves were provided. The results show that the cross-sectional shape and aspect ratio have significant effects on the horizontal and vertical wave forces under various wave conditions. Through the comparison of the local vorticity fields, it was found that the differences in the wave forces on the cylinders induced by the crosssectional shape are caused by the vortex effects to varying degrees. The aspect ratio and wave frequency have significant effects on the distribution of hydrodynamic coefficients; and the fitted expressions for the hydrodynamic coefficients for the cylinders with different cross-sections at low Kc numbers were obtained.