Title

Automatic, Unstructured Mesh Generation For Tidal Calculations In A Large Domain

Keywords

Computational hydrodynamics; Finite element method; Mesh generation; Shallow water equations; Tidal model; Truncation error

Abstract

An automated procedure is described for the production of unstructured, finite element meshes to perform depth-integrated, hydrodynamic calculations in an ocean-scale, two-dimensional domain. Three relatively coarse meshes with nearly identical boundaries are automatically produced by basing internal size guidelines on a localized truncation error analysis that was performed using results from a highly resolved mesh. Qualitative and quantitative comparisons of model performance are made at 150 historical tidal stations. The coarsest mesh is shown to meet or exceed the overall accuracy of the other meshes, including a highly resolved mesh that has over six times as many computational points. The automated procedure quickly and easily produces a computationally efficient and accurate finite element mesh that is reproducible. In addition, the methodology is shown to have potential for assessing the importance and accuracy of and bathymetric details and evaluating historical hydrodynamic data.

Publication Date

9-1-2006

Publication Title

International Journal of Computational Fluid Dynamics

Volume

20

Issue

8

Number of Pages

593-608

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/10618560601046846

Socpus ID

34247207831 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34247207831

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