Astrophysics and Space Science

, Volume 65, Issue 2, pp 453–458 | Cite as

On magnetoconvection in a rotating fluid layer of high thermal conductivity

  • D. J. Acheson
Article

Abstract

This paper explores the thermal instability of a plane fluid layer rotating rapidly about a vertical axis in the presence of a uniform vertical magnetic field. The thermal diffusivity κ is taken to be large compared with the magnetic diffusivity η. For a range of parameters it is shown that an increase of the magnetic field leads to adecrease in the critical Rayleigh number, and two quite distinct physical mechanisms appear to be involved.

Keywords

Magnetic Field Thermal Conductivity Vertical Axis Thermal Diffusivity Rayleigh Number 

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References

  1. Acheson, D. J.: 1978, in P. H. Roberts and A. M. Soward (eds.),Rotating Fluids in Geophysics, pp. 315–49, Academic Press.Google Scholar
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Copyright information

© D. Reidel Publishing Co 1979

Authors and Affiliations

  • D. J. Acheson
    • 1
  1. 1.Jesus CollegeOxfordEngland

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