|Unstructured, anisotropic mesh generation for the Northwestern European continental shelf, the continental slope and the neighbouring ocean|Legrand, S.; Deleersnijder, E.; Delhez, E.J.M.; Legat, V. (2007). Unstructured, anisotropic mesh generation for the Northwestern European continental shelf, the continental slope and the neighbouring ocean. Cont. Shelf Res. 27(9): 1344-1356. dx.doi.org/10.1016/j.csr.2007.01.009
In: Continental Shelf Research. Pergamon Press: Oxford; New York. ISSN 0278-4343, more
Continental shelves; Continental slope; Finite element method; Marine
unstructured grids; northwestern European continental shelf; Delaunay triangulation; finite elements methods; finite volumes methods
A new mesh refinement strategy for generating high quality unstructured meshes of the Northwestern European continental shelf, the continental slope and the neighbouring ocean is presented. Our objective is to demonstrate the ability of anisotropic unstructured meshes to adequately address the challenge of simulating the hydrodynamics occurring in these three regions within a unique mesh. The refinement criteria blend several hydrodynamic considerations as the tidal wave propagation on the continental shelf and the hydrostatic consistency condition in steep areas. Several meshes illustrate both the validity and the efficiency of the refinement strategy. The selection of the refinement parameters is discussed. Finally, an attempt is made to take into account tidal ellipses, providing another cause for anisotropy in the mesh.