Affiliation:
1. School of Naval Architecture, Civil and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2. School of Ocean Engineering, Jiangsu Ocean University, Jiangsu 222000, China
Abstract
Abstract
In the last several decades, some numerical approaches have been proposed to deal with three-dimensional wave-body interaction problems in sloping bottom environment. Most of them either adopt the finite depth Green function or add numerical damping terms into the free surface condition to treat far field radiation condition, which certainly give rise to numerical errors. The hybrid model (Belibassakis, “A Boundary Element Method for the Hydrodynamic Analysis of Floating Bodies in Variable Bathymetry Regions,” Eng. Anal. Boundary Elements 32, pp. 796–810) adopting the consistent coupled-mode system for incident wave propagation problem combining with the three-dimensional bottom-dependent Green function to treat the diffraction and radiation problem is a complete formulation, as the latter function appropriately characterize the far field radiation wave pattern over a smoothly sloping bottom. However, this model has not been validated after its publication. In this connection, comparisons with computational fluid dynamic (CFD) results are presented to verify its accuracy. Application of this hybrid model is also performed to investigate the effects on the floating hemisphere by the sloping bottom.
Funder
Ministry of Industry and Information Technology of the People's Republic of China
National Natural Science Foundation of China
Subject
Mechanical Engineering,Ocean Engineering