Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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Time-Domain Analysis of Nonlinear Wave-Making Phenomena by a Submerged Sphere Oscillating with Large Amplitude

대진폭 조화 운동을 하는 잠수구에 의한 비선형 조파현상의 시간영역 해석

  • Kim, Yong-Jig (Dept. of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Ha, Young-Rok (Dept. of Naval Architecture and Marine Systems Engineering, Pukyong National University)
  • 김용직 (부경대학교 조선해양시스템공학과) ;
  • 하영록 (부경대학교 조선해양시스템공학과)
  • Published : 2006.11.16
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Abstract

A high-order spectral/boundary-element method is newly adapted as an efficient numerical tool. In this method, the velocity potential is expressed as the sum of surface potential and body potential. Then, surface potential is solved fly using the high-order spectral method and body potential is solved fly using the high-order boundary element method. Through the combination of these two methods, the wave-making problems fly a submerged sphere moving with the large amplitude oscillation are solved in time-domain. With the example calculations, nonlinear effects on free-surface profiles and hydrodynamic forces are shown and discussed.

Keywords