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High-resolution, unstructured meshes for hydrodynamic models of the Great Barrier Reef, Australia

Legrand, S., Deleersnijder, E., Hanert, E., Legat, V. and Wolanski, E. (2006) High-resolution, unstructured meshes for hydrodynamic models of the Great Barrier Reef, Australia. Estuarine Coastal and Shelf Science, 68 (1-2). pp. 36-46.

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Abstract/Summary

Accuracy and mesh generation are key issues for the high-resolution hydrodynamic modelling of the whole Great Barrier Reef. Our objective is to generate suitable unstructured grids that can resolve topological and dynamical features like tidal jets and recirculation eddies in the wake of islands. A new strategy is suggested to refine the mesh in areas of interest taking into account the bathymetric field and an approximated distance to islands and reefs. Such a distance is obtained by solving an elliptic differential operator, with specific boundary conditions. Meshes produced illustrate both the validity and the efficiency of the adaptive strategy. Selection of refinement and geometrical parameters is discussed. (c) 2006 Elsevier Ltd. All rights reserved.

Item Type:Article
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Mathematics and Statistics
ID Code:5065
Uncontrolled Keywords:unstructured grids Great Barrier Reef Delaunay triangulation finite elements methods finite volumes methods COASTAL WATERS SHALLOW-WATER ISLAND OCEAN POPULATIONS SIMULATION DYNAMICS STRAIT LAGOON SEA

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