Instabilities of a liquid layer locally heated on its free surface
作者:
E. Favre,
L. Blumenfeld,
F. Daviaud,
期刊:
Physics of Fluids
(AIP Available online 1997)
卷期:
Volume 9,
issue 5
页码: 1473-1475
ISSN:1070-6631
年代: 1997
DOI:10.1063/1.869470
出版商: AIP
数据来源: AIP
摘要:
We report experimental results concerning patterns in a model experiment built to study buoyant-thermocapillary-driven flows. The fluid is situated in a cooled cylindrical container and locally heated on its free surface. The resulting temperature gradient induces a basic flow which draws the surface fluid from the hot center toward the cold boundary. When the gradient is increased and depending on the height of liquid, the basic flow destabilizes into different stationary patterns. Above a second threshold, the patterns become time-dependent. These different instabilities are characterized and compared to recent theoretical results. ©1997 American Institute of Physics.
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