Numerical Simulation of Nonlinear Wave Force on a Quasi-ellipse Caisson

作     者：YongxueWang Xiaozhong Ren GuoyuWang 

作者机构：State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China 

出 版 物：《Journal of Marine Science and Application》 (船舶与海洋工程学报（英文版）)

年 卷 期：2011年第10卷第3期

页      面：265-271页

学科分类：081505[工学-港口、海岸及近海工程] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the Science and Technology Program on Transportation Construction in Western China Ministry of Communications under Grant No.2004-328-832-51 

主　　题：quasi-ellipse caisson wave force VOF method partial cell method 

摘      要：A three dimensional numerical model of nonlinear wave action on a quasi-ellipse caisson in a time domain was developed in this paper. Navier-Stokes equations were solved by the finite difference method, and the volume of fluid （VOF） method was employed to trace the free surface. The partial cell method was used to deal with the irregular boundary typical of this type of problem during first-time wave interaction with the structure, and a satisfactory result was obtained. The numerical model was verified and used to investigate the effects of the relative wave height H/d, relative caisson width kD, and relative length-width ratio B/D on the wave forces of the quasi-ellipse caisson. It was shown that the relative wave height H/d has a significant effect on the wave forces of the caisson. Compared with the non-dimensional inline wave force, the relative length-width ratio BID was shown to have significant influence on the non-dimensional transverse wave force.