柳淑学

个人信息Personal Information

研究员

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:水利工程系

电子邮箱:liusx@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

An Efficient Model for Transient Surface Waves in Both Finite and Infinite Water Depths

点击次数:

论文类型:期刊论文

发表时间:2009-09-01

发表刊物:CHINA OCEAN ENGINEERING

收录刊物:SCIE、EI、ISTIC、Scopus

卷号:23

期号:3

页面范围:459-472

ISSN号:0890-5487

关键字:focused waves; fully nonlinear; higher-order boundary element method; image Green function; infinite water depth

摘要:A numerical model is developed to simulate fully nonlinear extreme waves in finite and infinite water-depth wave tanks. A semi-mixed Eulerian-Lagrangian formulation is adopted and a higher-order boundary element method in conjunction with an image Green function is used for the fluid domain. The boundary values on the free surface are updated at each time step by a fourth-order Runga-Kutta time-marching scheme at each time step. Input wave characteristics are specified at the upstream boundary by an appropriate wave theory. At the downstream boundary, an artificial damping zone is used to prevent wave reflection back into the computational domain. Using the image Green function in the whole fluid domain, the integrations on the two lateral walls and bottom are excluded. The simulation results on extreme wave elevations in finite and infinite water-depths are compared with experimental results and second-order analytical solutions respectively. The wave kinematics is also discussed in the present study.