Transitional free convection flows induced by thermal line sources

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Abstract

In the present study the usefullness of a large eddy simulation for transition is examined. Numerical results of such simulations are presented from a study to determine the characteristics of a flow induced by a thermal line source. The first bifurcation to time dependent motion and the route to chaos are considered. Qualitatively these features are in good agreement with theory. The governing equations, the concept of large eddy simulation and the numerical code that was used are described extensively. Also the results from a literature survey are presented. Special attention is paid to analytical solutions for the boundary layer equations for laminar flow and the stability of these solutions. It includes also overall conservation principles for turbulent plumes and results obtained by experiments.
Original languageEnglish
Place of PublicationEindhoven
PublisherEindhoven University of Technology
Number of pages61
ISBN (Print)90-386-0302-9
Publication statusPublished - 1993

Publication series

NameEUT report. W, Dept. of Mechanical Engineering
Volume93-W-002
ISSN (Print)0167-9708

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