This study deals with the numerical analysis of transient heat and species transfer by natural convection in a binary fluid vertical layer. The cavity is differentially heated and a solutal buoyancy force is created by imposing a concentration step at one vertical wall: This refers to the experimental situation where the composition gradient inducing the solutal buoyancy force is created by melting of pure ice in a salty solution. The constitution of the flow structure and the time evolution of the heat and mass transfer characteristics are studied for opposing body forces over a range of thermal and solutal Rayleigh numbers. The numerical results allow to provide a better insight into the mechanisms driving the heat and species transfer at high Lewis number thermohaline convection. [S0022-1481(00)00303-0]
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Transient Double Diffusive Convection in a Vertical Enclosure With Asymmetrical Boundary Conditions
S. Mergui,
e-mail: mergui@fast.u-psud.fr
S. Mergui
FAST–UMR CNRS 7608 (Universities Paris VI and Paris XI), Campus Universitaire, Ba^timent 502, 91405 Orsay Cedex, France
11
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D. Gobin
D. Gobin
FAST–UMR CNRS 7608 (Universities Paris VI and Paris XI), Campus Universitaire, Ba^timent 502, 91405 Orsay Cedex, France
Search for other works by this author on:
S. Mergui
11
FAST–UMR CNRS 7608 (Universities Paris VI and Paris XI), Campus Universitaire, Ba^timent 502, 91405 Orsay Cedex, France
e-mail: mergui@fast.u-psud.fr
D. Gobin
FAST–UMR CNRS 7608 (Universities Paris VI and Paris XI), Campus Universitaire, Ba^timent 502, 91405 Orsay Cedex, France
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division, Aug. 6 1999; revision received, Apr. 11, 2000. Associate Technical Editor: C. Beckermann.
J. Heat Transfer. Aug 2000, 122(3): 598-601 (4 pages)
Published Online: April 11, 2000
Article history
Received:
August 6, 1999
Revised:
April 11, 2000
Citation
Mergui, S., and Gobin , D. (April 11, 2000). "Transient Double Diffusive Convection in a Vertical Enclosure With Asymmetrical Boundary Conditions ." ASME. J. Heat Transfer. August 2000; 122(3): 598–601. https://doi.org/10.1115/1.1286673
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