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Semi-implicit Second Order Finite Volume Jet Stream Computations

By P G Tucker and C A Long

Abstract

Semi-implicit, second order temporal and spatial finite volume computations of the flow in a differentially heated rotating annulus are presented. For the regime considered, three cyclones and anticyclones separated by a relatively fast moving jet of fluid or "jet stream" are predicted. Two second order methods are compared with, first order spatial predictions, and experimental measurements. Velocity vector plots are used to illustrate the predicted flow structure. Computations made using second order central differences are shown to agree best with experimental measurements, and to be stable for integrations over long time periods (> 1000s). No periodic smoothing is required to prevent divergence

Publisher: International Journal of Numerical Methods for Heat and Fluid Flow
Year: 1996
DOI identifier: 10.1108/09615539610131253
OAI identifier: oai:sro.sussex.ac.uk:26665
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