Simulation of Floating Body in Nonlinear Wave by Vortex Methods - Part 1, Hydrodynamic Forces acting on Heaving Body under Free Surface

To utilize floating structure under heavy environmental condition in sea safely, motions of the floating body and the mooring forces acting on the body have to be reduced. To decrease these motions and mooring forces, fins attached structure has been proposed. In this paper, as a first step of the study, two vortex methods, the Random-Walk method and the Core-Spreading method, are applied to uniform flow past a circular cylinder and heaving fin plate under free surface. In the simulation of uniform flow, the authors conduct parametric study which helped to determine the numerical parameters to be used in subsequent simulations. Then, the simulated wake velocities are compared with experimental results to verify the calculation accuracy. In the simulation of heaving plate, hydrodynamic forces on the plate are simulated and compared with experimental results.

• Record URL:
  https://doi.org/10.2534/jjasnaoe.16.49
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Simulation+of+Floating+Body+in+Nonlinear+Wave+by+Vortex+Methods+-+Part+1%2c+Hydrodynamic+Forces+acting+on+Heaving+Body+under+Free+Surface&author=S.+Okubo&author=S.+Nagata&author=Y.+Imai&author=K.+Toyota&author=H.+Niizato&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18803717
• Authors:
  • Okubo, Shigeki
  • Nagata, Shuichi
  • Imai, Yasutaka
  • Toyota, Kazutaka
  • Niizato, Hideyuki
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 49-58
• Serial:
  • Journal of the Japan Society of Naval Architects and Ocean Engineers
  • Volume: 16
  • Issue Number: 0
  • Publisher: Japan Society of Naval Architects and Ocean Engineers
  • ISSN: 1880-3717
  • EISSN: 1881-1760
  • Serial URL: https://www.jstage.jst.go.jp/browse/jjasnaoe/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Heaving (Ship motion); Hydrodynamics; Simulation; Wakes
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; I70: Traffic and Transport;

Filing Info

• Accession Number: 01505725
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 11:27AM