Absolute instability of Rayleigh-Be´nard convection in a time-periodic shear flow
作者:
Hsi-shang Li,
Robert E. Kelly,
Philip Hall,
期刊:
Physics of Fluids
(AIP Available online 1997)
卷期:
Volume 9,
issue 5
页码: 1273-1276
ISSN:1070-6631
年代: 1997
DOI:10.1063/1.869242
出版商: AIP
数据来源: AIP
摘要:
The onset of thermal convection in an oscillatory shear flow is considered as an initial-value problem. For the case with zero mean shear, numerical results indicate that the instability is absolute in nature, just as for the case without any shear. If a mean flow component also exists, then the instability tends to have the same nature as that which occurs in the flow when no oscillation is present. ©1997 American Institute of Physics.
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