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The effect of centrifugal acceleration on axisymmetric convection in a shallow rotating cylinder or annulus

Published online by Cambridge University Press:  19 April 2006

P. G. Daniels
P. G. Daniels
Affiliation:
Department of Mathematics, The City University, Northampton Square, London, EC1V 0HB
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Abstract

This paper considers the nature of stationary axisymmetric convection in a shallow rotating annulus or cylinder heated from below. The horizontal and vertical walls of the container are assumed to be perfect conductors and insulators respectively. The critical regime is considered in which the circulations due to the centrifugal force and the vertical gravitational instability are of equal significance. Among the effects of the centrifugal acceleration on the gravitational instability are a shift in the value of the Rayleigh number at which instability sets in, a modification in the distribution and amplitude of convection cells in the container and, most significantly, a smooth transition to finite amplitude convection as the Rayleigh number is increased.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 99 , Issue 1 , 11 July 1980 , pp. 65 - 84
Copyright
© 1980 Cambridge University Press

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