Title :
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
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;
Conference_Titel :
OCEANS 2006 - Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0138-3
Electronic_ISBN :
978-1-4244-0138-3
DOI :
10.1109/OCEANSAP.2006.4393824
