Optimisation based bathymetry approximation through constrained unstructured mesh adaptivity

A method for generating high quality unstructured computational meshes for applications in geophysical, and specifically ocean, modelling is presented. The method generates a three-dimensional mesh which is optimised to approximate the bathymetry to a user-specified accuracy, which itself may be def...

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Published inOcean modelling (Oxford) Vol. 12; no. 3; pp. 436 - 452
Main Authors Gorman, G.J., Piggott, M.D., Pain, C.C., de Oliveira, C.R.E., Umpleby, A.P., Goddard, A.J.H.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2006
Subjects
Marine
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Summary:A method for generating high quality unstructured computational meshes for applications in geophysical, and specifically ocean, modelling is presented. The method generates a three-dimensional mesh which is optimised to approximate the bathymetry to a user-specified accuracy, which itself may be defined as a function of space and bathymetry. To do this a mesh optimisation method is employed which allows the formation of highly anisotropic elements aligned with bathymetric variations of high curvature. In addition a coastal recovery algorithm, based upon feature decimation and edge recovery, is described.
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ISSN:1463-5003
1463-5011
DOI:10.1016/j.ocemod.2005.09.004