Steady and time-dependent Rayleigh-Bénard convection under influence of shear flows |
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| Authors: | KR Kirchartz J Srulijes H Oertel |
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| Institution: | Universität Karlsruhe, Institute für Strömungslehre und Strömungsmaschinen, Kaiserstrasse 12, D-7500 Karlsruhe, FRG;Universität Essen GH, FB 12 Mechanik, Schützenbahn 70, D-4300 Essen 1, FRG;DFVLR Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., Institut für Theoretische Strömungsmechanik, Bunsenstr. 10, D-3400 Göttingen, FRG |
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| Abstract: | The influence of shear flows on Rayleigh-Bénard convection inside a rectangular box heated from below and cooled from above has been studied both theoretically and experimentally for different Prandtl numbers. Two basic models have been used to study how a shear flow, a basic flow in our particular case, influences the stability phenomenon. In the first model the basic flow was induced by a horizontal temperature gradient while in the second this was done by means of a tilted convection box. |
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