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Time-Domain Analysis of Nonlinear Wave-Making Problems by a Submerged Sphere Oscillating with Large Amplitude  

Kim, Yong-Jig (Dept. of Naval Architecture and Marine Systems Engineering, Pukyong National University)
Ha, Young-Rok (Research Center for Ocean Industrial Development, Pukyong National University)
Publication Information
Journal of Ocean Engineering and Technology / v.20, no.6, 2006 , pp. 67-74 More about this Journal
Abstract
A high-order spectral/boundary-element method is newly adapted as an efficient numerical tool. This method is one of the most efficient numerical methods by which the nonlinear gravity waves can be simulated and hydrodynamic forces also can be calculated in time-domain. In this method, the velocity potential is expressed as the sum of surface potential and body potential. Then, surface potential is solved by using the high-order spectral method and body potential is solved by using the high-order boundary element method. By the combination of these two methods, the wave-making problems by a submerged sphere oscillating with large amplitude under the free~surface are solved in time-domain. Through the example calculations, nonlinear effects on free-surface profiles and hydrodynamic forces are shown and discussed.
Keywords
High-order spectral/boundary-element method; Large amplitude oscillation; Wave-making problems; Nonlinear waves; Hydrodynamic forces; Time-domain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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