A Numerical Model for Wave Diffraction in Fully Nonlinear Wave Tank

Author

Zhang, X.T. ; Khoo, B.C. ; Lou, J.

Author_Institution

Nat. Univ. of Singapore, Singapore

fYear

2007

fDate

16-19 May 2007

Firstpage

1

Lastpage

5

Abstract

A numerical model in the time domain is developed for a numerical wave tank (NWT) with the fully nonlinear (or exact) free surface boundary conditions. In this model, an indirect desingularized boundary element method (DBEM) is employed to solve the boundary value problem of velocity potential at each time step and the mixed Eulerian-Lagrangian (MEL) formulation is adopted to track the instantaneous free surface boundary. The ISOPE benchmark test example of wave diffraction by a fixed Lewis form body is studied using this model, and the numerical results are compared with the available data.

Keywords

boundary-elements methods; diffraction; ocean waves; ISOPE benchmark test; Lewis form body; desingularized boundary element method; free surface boundary conditions; fully nonlinear wave tank; mixed Eulerian-Lagrangian formulation; numerical wave tank; wave diffraction; Benchmark testing; Boundary conditions; Boundary element methods; Boundary value problems; Diffraction; Laplace equations; Numerical models; Petroleum; Sea surface; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2006 - Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-0138-3

Electronic_ISBN

978-1-4244-0138-3

Type

conf

DOI

10.1109/OCEANSAP.2006.4393824

Filename

4393824