Numerical Simulation of Ice Floes in Waves.

Abstract

A complex numerical model to compute the behaviour of an arbitrarily shaped ice floe in ocean waves is proposed and discussed. The model has two independent and decoupled phases: firstly the motions and pressures are found for a totally rigid ice floe; and secondly the assumption of rigidity is relaxed so that the flexure may be computed from the under-ice pressure loading. Finite element techniques are used in the latter calculation so as to retain maximum generality. A detailed discussion of the method is given with special attention paid to the problems encountered in its development. The model is demonstrated in both a static and dynamic sense for an ice floe of simple cross-sectional shape in waves of various period. Although no detailed comparison with recorded wave data can be carried out at this time, a brief section discussing the application of the model to east Greenland and data is included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA103794

Entities

People

  • Vernon A. Squire

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computational Science
  • Finite Element Analysis
  • Fluids
  • Geometry
  • Materials
  • Mechanical Properties
  • Mechanics
  • Naval Architecture
  • Ocean Waves
  • Physical Properties
  • Pressure Distribution
  • Resonant Frequency
  • Sea Ice
  • Three Dimensional
  • Two Dimensional
  • Water
  • Waves

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Polar and Arctic Studies
  • Structural Dynamics.