Finite element approximation of 3D non-hydrostatic turbulent coastal ocean flows using a LES model
In this paper we present a stabilized finite element method for three-dimensional, non-hydrostatic, turbulent coastal ocean flows. The model we have developed, named HELIKE, incorporates also surface wind stress, bottom friction, Coriolis forces and several closure models for both the horizontal and...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2008 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/1770 |
| Acceso en línea: | https://hdl.handle.net/2117/1770 |
| Access Level: | acceso abierto |
| Palabra clave: | Navier-Stokes equations Finite element method Turbulence Ocean modelling Non-hydrostatic flows Finite elements Turbulence modelling Navier-Stokes, Equacions Elements finits, Mètode dels Turbulències -- Mètodes de simulació Classificació AMS::76 Fluid mechanics::76F Turbulence Classificació AMS::76 Fluid mechanics::76D Incompressible viscous fluids Classificació AMS::65 Numerical analysis::65M Partial differential equations, initial value and time-dependent initial-boundary value problems |
| Sumario: | In this paper we present a stabilized finite element method for three-dimensional, non-hydrostatic, turbulent coastal ocean flows. The model we have developed, named HELIKE, incorporates also surface wind stress, bottom friction, Coriolis forces and several closure models for both the horizontal and the vertical turbulent eddy vis- cosity coefficients. Unstructured meshes are employed so that complex geometries can be accurately approximated, and implicit time stepping allows to use large time steps. Numerical results are presented in various test cases, in which comparisons between different turbulence models are provided. |
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