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2006.239: Suppression of dripping from a ceiling

2006.239: John M. Burgess, Anne Juel, W.D. McCormick, J.B. Swift and Harry L. Swinney (2001) Suppression of dripping from a ceiling. Physical Review Letters, 86 (7). pp. 1203-1206. ISSN 0031-9007

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DOI: 10.1103/PhysRevLett.86.1203


An isothermal layer suspended from a surface is gravitationally (Rayleigh-Taylor) unstable. We find that, when a vertical temperature difference ΔT above a critical value (ΔT)c is imposed across the liquid-gas layer system (heated from below), the restoring force provided by the temperature-dependent surface tension (thermocapillarity) can stabilize the layer. Our measurements of the most unstable wave number for ΔT<(ΔT)c agree well with our linear stability analysis. The instability occurs at long wavelengths: the most unstable wavelength at (ΔT)c is infinite.

Item Type:Article
Subjects:PACS 2003 > 47 Fluid dynamics
PACS 2003 > 68 Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties)
MIMS number:2006.239
Deposited By:Miss Louise Stait
Deposited On:07 August 2006

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