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ISSN 961-91393-0-5
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 Year 1997
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733 pages
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Volume price - $130.00
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Interactions between the Marangoni and Intrusion Forces in a Multi - Cavity System
M. Z. Saghir
Dept. of Mechanical Engineering, UAE University, United Arab Emirates
M. Hennenberg
Chimie-Physique, Faculte des Sciences, U.L.B, Belgium
J. C. Legros
Microgravity Research Center, Faculte des Sciences Appliquees, U.L.B, Belgium
M. R. Islam
Dept. of Chemical and Petroleum Engineering, UAE University, United Arab Emirates
ABSTRACT
This paper numerically investigates the interaction between the Marangoni convection, the double diffusive convection and the intrusion force in the Maxworthy [J. Fluid Mech. Vol. 128, 25-282, 1983] set-up. The model consists of a two-cavity rectangular system in which the smaller cavity is located at the top left corner of the larger one. The larger cavity is filled with hot salty fluid while the smaller one contains cold fresh fluid. This problem is solved for the case of the fresh water intruding into the salty water. The interaction between the Marangoni (thermal and solutal) and the double diffusive regimes is investigated in detail. Finite element modelling results indicate that salinity induces stronger convection than the thermal ones and the thermal and solutal Marangoni convection further enhances the strength of the cellular flow. Numerical results indicate that surface force should be taken into consideration during the analysis and that the intruding force played an important role in the flow behaviour.
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