详情

原文传递 Solitary Wave Interacting with a Submerged Circular Plate

题名：	Solitary Wave Interacting with a Submerged Circular Plate
正文语种：	eng
作者：	Tso-Ren Wu;Hong-Yueh Lo;Yu-Lin Tsai;Li-Hung Ko;Mei-Hui Chuang;Philip L.-F. Liu
作者单位：	Graduate Institute of Hydrological and Oceanic Sciences National Central Univ. Taoyuan City 32001 Taiwan;Dept. of Engineering Science and Ocean Engineering National Taiwan Univ. Taipei City 10617 Taiwan;Graduate Institute of Hydrological and Oceanic Sciences National Central Univ. Taoyuan City 32001 Taiwan;Graduate Institute of Hydrological and Oceanic Sciences National Central Univ. Taoyuan City 32001 Taiwan;Graduate Institute of Hydrological and Oceanic Sciences National Central Univ. Taoyuan City 32001 Taiwan;School of Civil and Environmental Engineering National Univ. of Singapore Singapore 119077 Dept. of Civil and Environmental Engineering Cornell Univ. Ithaca NY 14853 Graduate Institute of Hydrological and Oceanic Sciences National Central Univ. Taoyuan City 32001 Taiwan
关键词：	Solitary wave; Circular plate; Shallow water solutions; Large eddy simulations; Wave force and moment; Vortex generation
摘要：	The interaction between a solitary wave and a submerged circular plate of a finite thickness was investigated in this study. Analytical solutions based on the linear long wave theory were first derived to serve as the leading-order predictive tool for this physical process. While the analytical solutions provide an easy way to calculate the wave field, they are limited by the simplifying assumptions. To complement the analytical solutions, a 3D Navier-Stokes equation solver with the large eddy simulation turbulence model was employed. The numerical model was verified against the analytical solutions for nearly linear cases and then applied to study more nonlinear cases in which the analytical solutions were less accurate. Both the analytical solutions and the numerical results show that wave focusing occurs near the lee side of the circular plate, creating higher local wave heights than that of the incident wave. As the wave passes over the submerged plate, the plate experiences an uplifting net force, followed by a net force in the downward direction, and then an uplifting net force again. The flow and pressure fields and vortices were also examined. By presenting the analytical and numerical tools that can be used to study this problem, and discussing the overall physics of this process, it is hoped that this study paves the way for future studies on this subject.
出版年：	2021
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
卷：	147
期：	1
页码：	04020046.1-04020046.21