Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/13369

Title: A nonhydrostatic unstructured-mesh soundproof model for simulation of internal gravity waves
Authors: Smolarkiewicz, Piotr K.
Szmelter, Joanna
Keywords: Unstructured mesh models
Nonoscillatory forward-in-time schemes
Atmospheric models
Soundproof equations
Mountain waves
Issue Date: 2011
Publisher: Versita / © Institute of Geophysics, Polish Academy of Sciences
Citation: SMOLARKIEWICZ, P.K. and SZMELTER, J., 2011. A nonhydrostatic unstructured-mesh soundproof model for simulation of internal gravity waves. Acta Geophysica, 59 (6), pp. 1109 - 1134
Abstract: A semi-implicit edge-based unstructured-mesh model is developed that integrates nonhydrostatic soundproof equations, inclusive of anelastic and pseudo-incompressible systems of partial differential equations. The model builds on nonoscillatory forward-in-time MPDATA approach using finite-volume discretization and unstructured meshes with arbitrarily shaped cells. Implicit treatment of gravity waves benefits both accuracy and stability of the model. The unstructured-mesh solutions are compared to equivalent structured-grid results for intricate, multiscale internal-wave phenomenon of a non-Boussinesq amplification and breaking of deep stratospheric gravity waves. The departures of the anelastic and pseudo-incompressible results are quantified in reference to a recent asymptotic theory [Achatz et al. 2010, J. Fluid Mech., 663, 120-147)].
Description: This article was published in the journal, Acta Geophysica [Versita / © Institute of Geophysics, Polish Academy of Sciences]. The definitive version is available at: http://dx.doi.org/10.2478/s11600-011-0043-z
Version: Accepted for publication
DOI: 10.2478/s11600-011-0043-z
URI: https://dspace.lboro.ac.uk/2134/13369
Publisher Link: http://dx.doi.org/10.2478/s11600-011-0043-z
ISSN: 1895-6572
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat
ActaGeoph020611_rev.pdf1.12 MBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.