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An unstructured-mesh atmospheric model for nonhydrostatic dynamics

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journal contribution
posted on 15.10.2013 by Piotr K. Smolarkiewicz, Joanna Szmelter, Andrzej A. Wyszogrodzki
A three-dimensional semi-implicit edge-based unstructured-mesh model is developed that integrates nonhydrostatic anelastic equations, suitable for simulation of small-to-mesoscale atmospheric flows. The model builds on nonoscillatory forward-in-time MPDATA approach using finite-volume discretization and admitting unstructured meshes with arbitrarily shaped cells. The numerical advancements are evaluated with canonical simulations of convective planetary boundary layer and strongly (stably) stratified orographic flows, epitomizing diverse aspects of highly nonlinear nonhydrostatic dynamics. The unstructured-mesh solutions are compared to equivalent results generated with an established structured-grid model and observation. © 2013 Elsevier Inc.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

SMOLARKIEWICZ, P.K., SZMELTER, J. and WYSZOGRODZKI, A.A., 2013. An unstructured-mesh atmospheric model for nonhydrostatic dynamics. Journal of Computational Physics, 254 pp. 184 - 199

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publication date

2013

Notes

This article was published in the serial, Journal of Computational Physics [© Elsevier]. The definitive version is available at: http://dx.doi.org/10.1016/j.jcp.2013.07.027

ISSN

0021-9991

eISSN

1090-2716

Language

en

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