Abstract
This paper deals with thermal convection in two superposed immiscible fluid layers in a rectangular cavity with differentially heated end walls. We have measured the horizontal velocity profiles in each layer as a function of elevation and we show the dominant rôle of interfacial tension effects. Experiments were conducted using Laser Doppler Anemometry; the system studied was water-heptanol.
Résumé
Cet article concerne la convection thermique dans deux couches fluides non miscibles, superposées et contenues dans une cavité rectangulaire dont les parois latérales sont maintenues à des températures différentes. Nous mesurons le profil horizontal de vitesse dans chaque couche, en fonction de la hauteur et nous montrons le rôle dominant des effects de tension interfaciale. Les résultats expérimentaux sont obtenus par anémométrie Laser Doppler sur le système eau-heptanol.
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References
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Villers, D., Platten, J.K. Thermal convection in superposed immiscible liquid layers. Applied Scientific Research 45, 145–152 (1988). https://doi.org/10.1007/BF00386209
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DOI: https://doi.org/10.1007/BF00386209