Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 367, Issue 1907, Pages 4591-4611Publisher
ROYAL SOC
DOI: 10.1098/rsta.2009.0155
Keywords
mesh adaptivity; anisotropy; ocean; gyre; western boundary current
Categories
Funding
- UK Natural Environment Research Council [NE/C52101X/1, NE/F004184/1, NE/F012594/1]
- Grantham Institute for Climate Change and the High Performance Computing Service at Imperial College London
- Natural Environment Research Council [NE/C521028/2, NE/F004184/1, NE/C51829X/1, NE/F012594/1, NE/C521036/1, NE/C52101X/1] Funding Source: researchfish
- NERC [NE/F012594/1, NE/F004184/1, NE/C521028/2] Funding Source: UKRI
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Research into the use of unstructured mesh methods in oceanography has been growing steadily over the past decade. The advantages of this approach for domain representation and non-uniform resolution are clear. However, a number of issues remain, in particular those related to the computational cost of models produced using unstructured mesh methods compared with their structured mesh counterparts. Mesh adaptivity represents an important means to improve the competitiveness of unstructured mesh models, where high resolution is only used when and where necessary. In this paper, an optimization-based approach to mesh adaptivity is described where emphasis is placed on capturing anisotropic solution characteristics. Comparisons are made between the results obtained with uniform isotropic resolution, isotropic adaptive resolution and fully anisotropic adaptive resolution.
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