Accelerated Higher Order Boundary Element Method for Wave Diffraction/Radiation Problems and Its Applications

Tomoaki Utsunomiya, Eiichi Watanabe

研究成果: Contribution to conferencePaper査読

30 被引用数 (Scopus)

抄録

This paper presents an accelerated higher order boundary element method for wave diffraction/radiation problems and its applications, especially for wave response analysis of VLFS (Very Large Floating Structures). The Fast Multipole Method (FMM) has been implemented on the higher order boundary element code using 8-node quadrilateral element. The method utilizes an iterative solver, multipole expansion of Green's function, and hierarchical algorithm using quadrant-tree. For solving hydroelastic problem efficiently using iterative solver, a new algorithm, where the equations of motions representing plate vibration are solved at each iterative step, has been introduced. The numerical benchmark calculations have shown the efficiency of the method both in storage requirement of O(N) and computation time of O(N log N), where N is the number of unknowns for the velocity potential.

本文言語英語
ページ305-312
ページ数8
出版ステータス出版済み - 12 1 2002
外部発表はい
イベントProceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference - Kitakyushu, 日本
継続期間: 5 26 20025 31 2002

その他

その他Proceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference
Country日本
CityKitakyushu
Period5/26/025/31/02

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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