文献类型：期刊文献

英文题名：Numerical examination of wave forces on partially submerged horizontal circular cylinders near free surface

作者：Mao, Hong-Fei[1,2];Yang, Yuan-Ting[1,2];Lin, Jin-Bo[1];Zhou, Zhong-Bing[1];He, Ming[3]

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]Tianjin Univ, Sch Civil Engn, Tianjin 300350, Peoples R China

年份：2024

卷号：313

外文期刊名：OCEAN ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001335646900001)、、EI(收录号：20244217208129)、Scopus(收录号：2-s2.0-85206241475)、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, 2022A1515240039] , the Special Fund Competition Allocation Project of Guangdong Science and Technology Innovation Strategy [Grant number 2023A01022] , the Doctor Initiate Projects of Guangdong Ocean University [grant number 120601-060302072403] .r Guangdong Science and Technology Innovation Strategy [Grant number 2023A01022] , the Doctor Initiate Projects of Guangdong Ocean Uni-versity [grant number 120601-060302072403] .

语种：英文

外文关键词：Horizontal circular cylinder; Wave force; Slamming force; Modified Morison's equation; Hydrodynamic coefficient

外文摘要：Determining wave forces on partially submerged horizontal circular cylinders near free surface is a significant issue. This study explores hydrodynamic coefficients and wave forces on horizontal circular cylinders near free surface under large-amplitude wave actions using a viscous fluid numerical wave tank model based on the finite volume method, with a particular aim to accurately predicting the slamming force. By analyzing the characteristics of the wave forces and slamming forces on the circular cylinder, the influences of wave amplitude, wave frequency and vertical position of the cylinder on the wave forces are investigated, and the relationships between the slamming forces and fluid velocity are discussed. Additionally, a modified Morison's equation for predicting the wave forces is derived considering the slamming force and the condition of the circular cylinder completely exposed to the air phase under the action of large-amplitude wave. The results of this study reveal that the wave forces on the circular cylinder are significantly influenced by wave amplitude, frequency and vertical position of the cylinder, and the influences of the cylinder position on the predicted minimum slamming velocity are remarkable. The present study demonstrates that modified Morison's equation is plausible and accurate in predicting the wave and slamming forces for submerged or floating structures.