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A comparison of spatial grids for numerical modelling of flows in near‐coastal seas
Author(s) -
Lardner R. W.,
Song Y.
Publication year - 1992
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650140109
Subject(s) - grid , computation , dimension (graph theory) , forcing (mathematics) , grid system , mesh generation , computational fluid dynamics , grid method multiplication , mathematics , meteorology , computer science , geology , geometry , mechanics , mathematical analysis , algorithm , physics , finite element method , pure mathematics , thermodynamics
Three‐dimensional algorithms for the numerical computation of flows caused by tides or meteorological forcing are developed for four of Arakawa's spatial grid types using a spectral method in the vertical dimension. Three of the grids, in which the velocity components are computed at the same grid points, offer potential advantages over the commonly used C‐grid. The computed results from the four grids are compared for three test problems based on the linearized hydrodynamical equations. It is concluded that the B‐grid provides a viable alternative to the C‐grid, with significant advantages when a spectral method is used.