| Original Articles |
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Instability of Two-Layer Rayleigh-Bénard Convection with Interfacial Thermocapillary Effect |
| LIU Qiu-Sheng1;ZHOU Bing-Hong1,2;NGUYEN THI Henri2;HU Wen-Rui1 |
| 1Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
2L2MP, UMR CNRS 6137, Université d’Aix-Marseille III, 13397 Marseille Cedex 20, France |
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| Cite this article: |
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LIU Qiu-Sheng, ZHOU Bing-Hong, NGUYEN THI Henri et al 2004 Chin. Phys. Lett. 21 686-688 |
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Abstract The linear instability analysis of the Rayleigh-Marangoni-Bénard convection in a two-layer system of silicon oil 10 cS and fluorinert FC70 liquids are performed in a larger range of two-layer depth ratios Hr from 0.2 to 5.0 for different total depth H ≤ 12 mm. Our results are different from the previous study on the Rayleigh-Bénard instability and show strong effects of thermocapillary force at the interface on the time-dependent oscillations arising from the onset of instability convection.
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| Keywords:
47.20.Ma
47.20.Bp
47.27.Te
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Published: 01 April 2004
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| PACS: |
47.20.Ma
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(Interfacial instabilities (e.g., Rayleigh-Taylor))
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47.20.Bp
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(Buoyancy-driven instabilities (e.g., Rayleigh-Benard))
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47.27.te
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(Turbulent convective heat transfer)
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