CFD Simulations of a Ferry in Head Seas

Abstract

A ship travelling in a seaway can often experience slamming characterized by large sudden loads from impacts with waves. These loads can be large enough to cause local damage, but also induce a whipping response which stresses the primary hull structure and adversely affects the overall fatigue life of the vessel. Most common sea keeping prediction programs use potential flow theory that cannot directly simulate the physics of slamming. This report contains a study using more advanced computational fluid dynamics methods which can reproduce wave impacts. Simulations were conducted for a ferry hull travelling in head seas and compared to existing experimental data. It was found that slamming loads are well predicted, but there can be difficulties in generating and propagating large steep waves inside the simulation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2011
Accession Number
AD1004212

Entities

People

  • Eric Thornhill

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Boundary Layer
  • Buoyancy
  • Cartesian Coordinates
  • Computational Fluid Dynamics
  • Computational Science
  • Dynamics
  • Equations
  • Experimental Data
  • Fatigue Life
  • Flow
  • Fluid Dynamics
  • Junction Boxes
  • Mechanical Properties
  • Potential Flow
  • Pressure Transducers
  • Security
  • Simulations

Readers

  • Computational Fluid Dynamics (CFD)
  • Marine Hydrodynamics
  • Materials Science (Mechanical Engineering).