Fang Kezhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Dalian University of Technology
Discipline:Port, Coastal and Offshore Engineering
Business Address:Room B304, Ocean Engineering Research Institute
E-Mail:kfang@dlut.edu.cn
Hits:
Indexed by:会议论文
Date of Publication:2015-11-01
Page Number:256-262
Key Words:Boussinesq方程;色散性;变浅性;数值模型;波浪
Abstract: Boussincsq水波模型在港口、海岸以及海洋工程领域应用甚广,其模拟波浪的能力已得到海岸工程界的高度认同.然而针对此类方程变浅作用性能的认识,仍不够充分,尤其是一些常用的Boussinesq方程,因变浅性能引起的实际线性波幅误差情况并未得到足够的重视.为此,本文对3组著名的Boussinesq方程(Kennedy等,2001；Madsen和Sch(a)ffer, 1998；Lynett和Liu,2004),提出了引入含参数的变换速度变量取代原方程中速度变量,得到了3组以计算速度变量表达的Boussinesq方程,讨论了方程的色散性能和变浅性能,并给出几组不同适用水深情况下方程中的系数取值.对基于计算速度变量表达的Lynett和Liu的Boussinesq方程进行了改进,得到1组新的Boussinesq水波方程.在色散误差为1.49％下,该方程可适用的无因次水深为κ=80 (κ=ω2h/g),对应的最大线性波幅误差为1.78％.在非交错网格下,建立了基于预报-校正的四阶Adams-Bashforth-Moulton格式的数值模型.利用这些模型计算了波浪在斜坡上的传播变形,通过与线性解对比考察了方程的变浅作用性能.利用数值模型模拟潜堤上地形波浪传播变形,将模拟结果与相关试验结果进行了对比,二者吻合程度较高.
Dr. Kezhao Fang is an associated professor (Phd Supervisor) with the State Key Laboratory of Coastal and Offshore Engineering in Dalian University of Technology. His research interests include (but not limitted to) developing numerical models for ocean and coastal waves, coastal (reef) hydrodynamics, coastal morphology. He is a member of IAHR and an invited reviewer for Journal of Fluid Mechanics, Coastal Engineering, Ocean Engineering, Applied Ocean Research, and etc. He has got a total of more than 80 papers published, the details of the papers also could be found via researchgate:
https://www.researchgate.net/profile/Kezhao_Fang2
