Oscillatory Double Diffusive Convection Similarity Between Parallel And
Cross Temperature And Solutal Gradients
Author(s)
R. Bennacer, D. Akrour, H. Beji & M. Betrouni
Abstract
Oscillatory double diffusive convection
similarity between parallel and cross
temperature and solutal gradients
R. Bennacer% D. Akrour, H. Beji* and M. Betrouni^
Constructions Rue d'Eragny, 95031 Neuville sur Oise, France.
^Laboratoire de Mecanique des Fluides, Institut de physique, U.S. T.H.B,
Abstract
This work deals with unsteady laminar double-diffusive convection in a
rectangular cavity. The enclosure is heated along one vertical wall and cooled
along the other. Solutal gradient is imposed either horizontally or vertically. Under
high N value a strong stratified fluid and diffusive solution is obtained. The
objective of the work is to identify the flow regime from thermal to solutal
dominated flows and to compare the solutions issued from the two considered
applied boundary conditions. The flow structure in the transitional domain, from a
thermal-dominated situation to a compositional-dominated, depend on the initial
conditions. Flow hysteresis effect is observed and
Keywords
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