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:期刊论文
Date of Publication:2016-07-04
Journal:哈尔滨工程大学学报
Included Journals:EI、PKU、ISTIC、CSCD、Scopus
Volume:37
Issue:8
Page Number:997-1002
ISSN No.:1006-7043
Key Words:Boussinesq水波方程;计算速度;色散性;非线性;和差频;速度剖面
Abstract:为精确描述深水强非线性波浪运动，本文推导了适用于极端水深、具有高精度色散和非线性特征的双层Boussinesq水波方程。首先把流体虚拟地划分为上下两层，对上下两层的速度势分别在静水面处和交界面处沿水深做泰勒展开，任一点速度可用此两处速度表达；其次在两层流体的中间水深位置上选择速度变量，进一步用两个计算水平速度矢量和两个垂向速度分量取代它们，依此速度表达流场内任一水深处的速度；最后结合自由表面的运动学方程和动力学方程、交界面上速度相等以及海底边界条件，推导了双层高阶Boussinesq水波方程。对该方程进行傅立叶分析，方程色散关系式为Padé（18，20），当分层位置为0．12倍静水深时，该方程具有非常优良的线性和非线性性能。在1％误差下，相速度适用水深可达kh＝210，沿水深的速度剖面分布最大适用水深可达kh＝114，二阶和差频最大适用水深可达kh＝103。
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
