Effects of viscosity variation on the stability of film flow down heated or cooled inclined surfaces: Long‐wavelength analysis
作者:
D. Goussis,
R. E. Kelly,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1985)
卷期:
Volume 28,
issue 11
页码: 3207-3214
ISSN:0031-9171
年代: 1985
DOI:10.1063/1.865368
出版商: AIP
数据来源: AIP
摘要:
The linear stability of liquid film flow, when the viscosity depends exponentially on temperature, is investigated here for the case of heating or cooling from below by means of an analysis valid for long waves. It is shown that cooling stabilizes the flow, while heating destabilizes it. For the case of cooling, a cutoff Prandtl number exists, above which the flow is stable with respect to long waves.
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