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On physical realizability and uncertainty of numerical solutions

Dörnbrack, Andreas and Doyle, James D. and Lane, Todd P. and Sharman, Robert D. and Smolarkiewicz, Piotr K. (2005) On physical realizability and uncertainty of numerical solutions. Atmospheric Science Letters, 6, pp. 118-122. DOI: 10.1002/asl.100.

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Numerical experiments of the stratified flow past a bell-shaped mountain with a shallow shear layer aloft are performed. Two different approximations of the entropy equation (explicit vs implicit numerical treatment of gravity waves) lead to a substantial discrepancy of the numerical results. As the flow is metastable, it turns out that both solutions are physically realizable and the quality of the solution changes in response to small variations in the accuracy of the numerical approximation.

Document Type:Article
Title:On physical realizability and uncertainty of numerical solutions
AuthorsInstitution or Email of Authors
Dörnbrack, AndreasUNSPECIFIED
Doyle, James D.Naval Research Lab., Monterey, CA, USA
Lane, Todd P.NCAR, Boulder, CO, USA
Sharman, Robert D.NCAR, Boulder, CO, USA
Smolarkiewicz, Piotr K.NCAR, Boulder, CO, USA
Journal or Publication Title:Atmospheric Science Letters
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 118-122
Keywords:computational fluid dynamics, anelastic equations, multiscale numerical modelling
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Jana Freund
Deposited On:17 Mar 2008
Last Modified:11 Nov 2014 21:56

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