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- W125694747 abstract "In order to overcome shortcomings of triangulation based meshing tools a new type of mesh generation tool has been developed. At first, the significant geometric shape of the bathymetry is approximated by free form surfaces using the input information from measurements, digital surface models and maps. Different editor tools take advantage of the specific structure of sounding data, such as cross sections, longitudinal profiles or scattered data. Based on these approximating surfaces, which are connected C1 continuously, any mesh with user specified criteria can easily be generated. These quadrilateral or triangle meshes may be equidistant, regular or unstructured due to different refinement criteria. The advantage of this new mesh generation tool is demonstrated within a project to simulate and to predict the amount of cohesive sediment movement in the estuary of the tidal Weser River. In this realistic example two different criteria for mesh refinement are applied: At first, all elements are refined due to the depth of the element nodes. In addition, the user specifies refinement areas with special importance of the numerical results. The effort to generate the mesh, the quality of the mesh and the results of the numerical simulation are evaluated." @default.
- W125694747 created "2016-06-24" @default.
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- W125694747 date "2002-01-01" @default.
- W125694747 modified "2023-09-26" @default.
- W125694747 title "Generation of Adaptive Finite Element Meshes Based on Approximation Surfaces" @default.
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