Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-22T08:01:26.982Z Has data issue: false hasContentIssue false

On nonlinear overstable convection rolls in a rotating system

Published online by Cambridge University Press:  17 February 2009

N. Riahi
Affiliation:
Department of Theoretical and Applied Mechanics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, U.S.A.
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Finite amplitude oscillatory convection rolls in the form of travelling waves are studied for a horizontal layer of a low Prandtl number fluid heated from below and rotating rapidly about a vertical axis. The results of the stability and nonlinear analyses indicate that there is no subcritical instability and that the oscillatory rolls are unstable for the ranges of the Prandtl number and the rotation rate considered in this paper.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1984

References

[1]Busse, F. H. and Clever, R. M., “Nonstationary Convection in a rotating system”, in Recent developments in theoretical and experimental fluid mechanics (eds. Muller, U., Roerner, K. G. and Schmidt, B.). (Springer-Verlag, 1979), 376385.Google Scholar
[2]Chandrasekhar, S., Hydrodynamic and hvdromagnetic stability (Oxford UniversityPress, 1961).Google Scholar
[3]Clever, R. M. and Busse, F. H., “Nonlinear properties of convection rolls in a horizontal layer rotating about a vertical axis”, J. Fluid Mech. 94 (1979) 609627.Google Scholar
[4]Kuppers, G., “The stability of steady finite amplitude convection in a rotating fluid layer”, Phys. Lett. A 32 (1970). 78.CrossRefGoogle Scholar
[5]Kuppers, G. and Lortz, D., “Transition from laminar convection to thermal turbulence in a rotating fluid layer”, J. Fluid Mech. 35 (1969), 609620.Google Scholar
[6]Malkus, W. V. R. and Veronis, G., “Finite amplitude cellular convection”, J. Fluid Mech. 4 (1958), 225260.sGoogle Scholar
[7]Rossby, H. T., “A study of Benard convection with and without rotation”, J. Fluid Mech. 36 (1969), 309335.CrossRefGoogle Scholar
[8]Schluter, A., Lortz, D. and Busse, F. H., “On the stability of steady finite amplitude convection”. J. Fluid Mech. 23 (1965), 129144.Google Scholar
[9]Veronis, G., “Cellular convection with finite amplitude in a rotating fluid”, J. Fluid Mech. 5 (1959), 401435.Google Scholar