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:2016-10-01
Page Number:1
Key Words:Boussinesq方程;色散性;变浅性;二阶和差频;速度剖面
Abstract:为提高速度剖面、线性和非线性等特征精度,本文推导了适合变水深情况下的多层Boussinesq水波方程。从Laplace方程出发,将流体分为N层,首先确定了基于每层中间点位置处速度表达的方程,进而引入计算速度取代中间点的速度,最终方程包含N个计算水平速度和N个垂直速度。N-1个连接面上速度相等方程、自由表面的运动学条件和动力学条件以及水底边界条件构成了多层Boussinesq水波方程,方程中最高空间导数为2,这便于数值求解。在常水深情况下分析了多层模型的色散性、二阶和差频以及速度剖面精度;在变水深情况下,分析了方程的变浅性能。在1%误差下,4层模型的色散适用范围为0<kh<170,速度适用范围为0<kh<65,二阶和差频适用范围为0<kh<80;变浅性能在0<kh<40范围内具有很高的精度。这表明本文给出的多层模型大大拓宽了Boussinesq水波模型的适用范围,该模型可期望用于研究强非线性波浪演变等问题。
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
