Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14535
Title: Simulation of wave-body interaction : a desingularized method coupled with acceleration potential
Authors: Wang, L
Tang, H
Wu, Y
Keywords: Acceleration potential
Desingularized boundary integral equation method
Numerical wave tank
Wave-body interaction
Issue Date: 2015
Publisher: Academic Press
Source: Journal of fluids and structures, 2015, v. 52, p. 37-48 How to cite?
Journal: Journal of fluids and structures 
Abstract: A two-dimensional, potential-theory based, fully nonlinear numerical wave tank (NWT) is developed for the simulation of wave-body interaction. In this NWT, the concept of acceleration potential is adopted in addition to the velocity potential. Both potentials are solved using the desingularized boundary integral equation method (DBIEM). By tapping the strength of the DBIEM, a new acceleration-potential solving method is proposed, which turns the originally implicit kinematic boundary condition on the surface of a passively moving body into an explicit one. Unlike the other existing methods such as the mode decomposition method, the indirect method and the iterative method, the present method requires solving of only one boundary value problem to determine the acceleration potential, and hence significantly enhances the computational efficiency. Using this NWT, the nonlinear interaction between a freely floating barge and various incident waves is investigated. It is confirmed that the new acceleration potential solving method outperforms other existing methods, saving at least 45% of the computational time.
URI: http://hdl.handle.net/10397/14535
ISSN: 0889-9746
EISSN: 1095-8622
DOI: 10.1016/j.jfluidstructs.2014.08.009
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