CGRG Bibliography of Canadian Geomorphology
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Author : Barker, A; Timco, G.; and Sayed, M.
Date : 2001.
Title : Three-dimensional numerical simulation of ice pile-up evolution along shorelines
Publication : Coastal Science and Engineering, challenge for the new Millennium. 2001 Canadian Coastal Conference. May 16-19 2001. Universite Laval. Pavillon La Laurentienne, Quebec, QC.
Issue :
Page(s) :
Abstract
The paper presents the results of a study that numerically simulates rubble ice pile-up against rubblemound breakwaters. The model details the evolution of sail and keel geometry and the deformation of the ice rubble as it interacts with the structure. A numerical model of floating ice movements and deformation is presented. This model can be used to investigate several different types of problems relevant to coastal engineering. The model is based on using a Particle-In-Cell (PIC) approach, combined with a viscous plastic ice rheology. The PIC model is semi-Lagrangian. It is based on using discrete particles to model ice advection, while solving the momentum equations over an Eulerian grid. The use of discrete particles reduces numerical diffusion, and improves the accuracy of modelling ice boundary conditions. At the same time, the use of an Eulerian grid makes it possible to utilize an implicit numerical solution scheme for the momentum equations, which substantially increases the computational efficiency. The plastic yield of the present model follows a Mohr-Coulomb criterion. In the present paper, the three-dimensional PIC model is described, and used to predict ice forces, shapes and pile-up heights on a rubblemound breakwater structure. The roles of ice thickness and ice properties are investigated. The influence of the shape of the breakwater is also examined.
Bibliography of Canadian Geomorphology