• Nonlinear development of convective instability within slender flux tubes. II. The effect of radiative heat transport

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    • Keywords


      Sun, magnetic field; Sun, convection; fluid dynamics, unsteady flow; heat transport

    • Abstract


      Inclusion of radiative heat transport in the energy equation for a slender flux tube leads to oscillations of the tube. The amplitude of the oscillations depends on the radius of the tube when lateral heat exchange alone is considered. Longitudinal heat transport has a greater influence on the evolution of the instability than lateral heat exchange for the particular value of tube radius considered in the calculation. Heat transport is seen to reduce the efficiency of concentration of magnetic fields by convective collapse in the case of polytropic tubes.

    • Author Affiliations


      P. Venkatakrishnan1

      1. Indian Institute of Astrophysics, Bangalore - 560 034
    • Dates

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