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An ocean modelling system with turbulent boundary layers and topography: numerical description
Author(s) -
Dietrich David E.,
Marietta M. G.,
Roache Patrick J.
Publication year - 1987
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.1650070805
Subject(s) - closure (psychology) , hydrostatic equilibrium , turbulence , geology , boundary layer , boundary (topology) , grid , mechanics , primitive equations , geometry , meteorology , mathematics , physics , mathematical analysis , geodesy , partial differential equation , market economy , numerical partial differential equations , quantum mechanics , economics
The Sandia ocean modelling system (SOMS) is a system of three‐dimensional, fully conservative, partially implicit numerical models based on primitive equations and a staggered Arakawa ‘c’ grid. A thin‐shell bottom boundary layer submodel coupled to a free‐stream submodel resolves boundary layers together with realistic topography. Both submodels use stretched vertical co‐ordinates and an optional Mellor‐Yamada level‐2·5 turbulence closure. Rigid top pressures are determined by vertical integration of the conservation equations using a hydrostatic approximation. SOMS reproduces previously published results, but with notable advantages in speed and economy.