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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.; Wolanski, E. (2006). High-resolution, unstructured meshes for hydrodynamic models of the Great Barrier Reef, Australia. Est., Coast. and Shelf Sci. 68(1-2): 36-46. dx.doi.org/10.1016/j.ecss.2005.08.017
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 103640 [ OMA ]

Keywords
    Delaunay triangulation; ISEW, Great Barrier Reef [Marine Regions]; Marine
Author keywords
    unstructured grids; Great Barrier Reef; Delaunay triangulation; finite elements methods; finite volumes methods

Project Top | Authors 
  • Second-generation Louvain-la-Neuve Ice-ocean Model, more

Authors  Top 
  • Legrand, S., more
  • Deleersnijder, E., more
  • Hanert, E., more

Abstract
    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.

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