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


Paper Publications

Alternative forms of the higher-order Boussinesq equations: Derivations and validations

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Indexed by:期刊论文

Date of Publication:2008-06-01

Journal:COASTAL ENGINEERING

Included Journals:SCIE、EI

Volume:55

Issue:6

Page Number:506-521

ISSN No.:0378-3839

Key Words:Boussinesq equations; wave propagation; nonlinear waves

Abstract:An alternative form of the Boussinesq equations is developed, creating a model which is fully nonlinear up to O(mu U-4) (mu is the ratio of water depth to wavelength) and has dispersion accurate to the Pade [4,4] approximation. No limitation is imposed on the bottom slope; the variable distance between free surface and sea bottom is accounted for by a sigma-transformation. Two reduced forms of the model are also presented, which Simplify O(mu(4)) terms using the assumption epsilon = O(mu(2/3)) (epsilon is the ratio of wave height to water depth). These can be seen as extensions of Serre's equations, with dispersions given by the Pade [2,2] and Pade [4,4] approximations. The third-order nonlinear characteristics of these three models are discussed using Fourier analysis, and compared to other high-order formulations of the Boussinesq equations. The models are validated against experimental measurements of wave propagation over a submerged breakwater. Finally, the nonlinear evolution of wave groups along a horizontal flume is simulated and compared to experimental data in order to investigate the effects of the amplitude dispersion and the four-wave resonant interaction. (C) 2008 Elsevier B.V. All rights reserved.

Pre One:Further improvements to the higher-order Boussinesq equations: Bragg reflection

Next One:多孔介质中波浪传播的高阶Boussinesq方程

Profile

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