Hydrodynamic Interaction Forces Between Two Ships in Waves

Abstract

The hydrodynamic interaction forces in waves are computed for two ships advancing in parallel at the same speed. The forces considered are due to added mass, wave radiation damping, and wave excitation including diffraction effects. The coupled hydrodynamic forces are computed by the three-dimensional panel method using the zero speed Green function, with extensions to include forward speed effects. The theoretical formulation correctly satisfies boundary conditions on both ship hulls simultaneously. The wave diffraction problem is solved for the presence of both ships in a stationary state. The wave radiation problem is solved by assuming one ship is in motion while the other is at rest. Examples are given for two stationary vertical circular cylinders and for a small vessel advancing in close proximity to a large supply vessel.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1997
Accession Number
AD1003520

Entities

People

  • C. C. Hsiung
  • K. Mctaggart
  • Yijun He

Organizations

  • Dalhousie University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Diffraction
  • Engineering
  • Excitation
  • Hydrodynamics
  • Marine Engineering
  • Nova Scotia
  • Radiation
  • Ship Hulls
  • Stationary
  • Three Dimensional
  • Universities
  • Walls

Readers

  • Computational Fluid Dynamics (CFD)
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Naval Architecture and Marine Engineering.