Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/73361
Title: Diffraction of regular and irregular waves by a horizontal cylinder in a fully nonlinear 2D numerical wave tank using desingularized BEM
Authors: Zhang, X.T. 
Khoo, B.C. 
Lou, J.
Keywords: Desingularized boundary element method
Fully nonlinear
Irregular waves
Numerical wave tank
Wave diffraction
Issue Date: 2006
Source: Zhang, X.T.,Khoo, B.C.,Lou, J. (2006). Diffraction of regular and irregular waves by a horizontal cylinder in a fully nonlinear 2D numerical wave tank using desingularized BEM. Proceedings of the International Offshore and Polar Engineering Conference : 363-369. ScholarBank@NUS Repository.
Abstract: An approach for two-dimensional (2D) numerical wave tank (NWT) in the time domain is developed within the frame of potential flow, in which the fully nonlinear (or exact) free surface boundary conditions are satisfied. In this approach, the desingularized boundary element method (BEM) is employed to solve the boundary value problem at each time step. The fourth-order predictor-corrector Adams-BashforthMoulton (ABM4) scheme is used for the time-stepping integration of instantaneous free surface boundary conditions. A damping layer near the end-wall of wave tank is added to absorb the outgoing waves. The saw-tooth instability is overcome via a five-point Chebyshev smoothing scheme. The present model is applied to study the diffraction problem of both regular and irregular incident waves by a horizontal cylinder in detail. Copyright © 2006 by The International Society of Offshore and Polar Engineers.
Source Title: Proceedings of the International Offshore and Polar Engineering Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/73361
ISBN: 1880653664
ISSN: 10986189
Appears in Collections:Staff Publications

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