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arXiv · 1111.2267

Modelling and numerical approximation of a 2.5D set of equations for mesoscale atmospheric processes

Dante Kalise·Ivar Lie
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Abstract

The set of 3D inviscid primitive equations for the atmosphere is dimensionally reduced by a Discontinuous Galerkin discretization in one horizontal direction. The resulting model is a 2D system of balance laws where with a source term depending on the layering procedure and the choice of coupling fluxes, which is established in terms of upwind considerations. The "2.5D" system is discretized via a WENO-TVD scheme based in a flux limiter centered approach. We study four tests cases related to atmospheric phenomena to analyze the physical validity of the model.

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BibTeXRIS

Dante Kalise, Ivar Lie. 2011-11-09. Modelling and numerical approximation of a 2.5D set of equations for mesoscale atmospheric processes. https://doi.org/10.1016/j.jcp.2012.06.035

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