2007.131: Surface tension-driven convection patterns in two liquid layers
2007.131: A. Juel, J.M. Burgess, W.D. McCormick, J.B. Swift and H.L. Swinney (2000) Surface tension-driven convection patterns in two liquid layers. Physica D, 143 (1-4). pp. 169-186. ISSN 0167-2789
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DOI: 10.1016/S0167-2789(00)00100-7
Abstract
Two superposed liquid layers display a variety of convective phenomena that are inaccessible in the traditional system where the upper layer is a gas. We consider several pairs of immiscible liquids. Once the liquids have been selected, the applied temperature difference and the depths of the layers are the only independent control parameters. Using a perfluorinated hydrocarbon and silicone oil system, we have made the first experimental observation of convection with the top plate hotter than the bottom plate. Since the system is stably stratified, this convective flow is solely due to thermocapillary forces. We also have found oscillatory convection at onset in an acetonitrile and n-hexane system heated from below. The experimental observations are in reasonable agreement with linear stability analyses.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bénard–Marangoni convection; Oscillatory convection; Convection heating from above; Thermo-solutal |
| Subjects: | PACS 2003 > 47 Fluid dynamics |
| MIMS number: | 2007.131 |
| Deposited By: | Miss Louise Stait |
| Deposited On: | 02 November 2007 |
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