A high-order finite-volume method for atmospheric flows on unstructured grids

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dc.contributor.authorTsoutsanis, Panagiotis
dc.contributor.authorDrikakis, Dimitris
dc.date.accessioned2017-01-27T11:37:45Z
dc.date.available2017-01-27T11:37:45Z
dc.date.issued2016-09-01
dc.description.abstractThis paper presents an extension of a Weighted Essentially Non-Oscillatory (WENO) type schemes for the compressible Euler equations on unstructured meshes for stratified atmospheric flows. The schemes could be extended for regional and global climate models dynamical cores. Their potential lies in their simplicity; accuracy; robustness; non-oscillatory properties; versatility in handling any type of grid topology; computational and parallel efficiency. Their defining characteristic is a non-linear combination of a series of high-order reconstruction polynomials arising from a series of reconstruction stencils. In the present study an explicit Strong Stability Preserving (SSP) Runge-Kutta 3rd-order method is employed for time advancement. The WENO schemes (up to 5th-order) are applied to the two dimensional and three dimensional test cases: a 2D rising thermal bubble; the 2D density current and the 3D Robert smooth bubble. The parallel performance of the schemes in terms of scalability and efficiency is also assessed.en_UK
dc.identifier.citationTsoutsanis, Panagiotis; Drikakis, Dimitris, A high-order finite-volume method for atmospheric flows on unstructured grids, Journal of Coupled Systems and Multiscale Dynamics, Volume 4, Issue 3, 2016, pp. 170-186en_UK
dc.identifier.issn2330-152X
dc.identifier.urihttps://doi.org/10.1166/jcsmd.2016.1104
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11364
dc.language.isoenen_UK
dc.publisherAmerican Scientific Publishersen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectFinite-volumeen_UK
dc.subjectStratified atmospheric flowsen_UK
dc.subjectUnstructured meshen_UK
dc.subjectWENOen_UK
dc.titleA high-order finite-volume method for atmospheric flows on unstructured gridsen_UK
dc.typeArticleen_UK

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