Author:
Proctor M. R. E.,Galloway D. J.
Abstract
The interaction between magnetic fields and convection in a fluid heated from below is investigated in an axisymmetric cylindrical geometry. When Rm, the magnetic Reynolds number, is large the field is concentrated into a thin rope on the axis of the cylinder. For weak magnetic fields a larger Rayleigh number is necessary to produce a flux rope than that needed for infinitesimal convection. For larger total fluxes, however, the opposite is true and the system is subcritically unstable to steady motions. The results are contrasted with those found by Busse (1975) for the corresponding two-dimensional roll problem.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference14 articles.
1. Harvey, J. W. 1977 Observations of small-scale photospheric magnetic fields.Highlights of Astronomy 4 (II),223–239.
2. Galloway, D. J. 1977 Magnetic fields and convection in the sun. Ph.D. thesis,University of Cambridge.
3. Thompson, W. B. 1951 Thermal convection in a magnetic field.Phil. Mag. (7),42,1417–1432.
4. Stenflo, J. O. 1976 Small scale solar magnetic fields. In Basic Mechanisms of Solar Activity. I.A.U. Symp. no. 71 (ed. V. Bumba & J. Kleček ), pp.69–96.Reidel.
5. Huppert, H. E. & Moore, B. R. 1976 Nonlinear double-diffusive convection.J. Fluid Mech. 78,821–854.
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