منابع مشابه
Vortex tube formation in solar turbulent convection
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Convection in a fluid heated from below, known as Rayleigh-Bénard convection, is an important turbulent process that occurs in the sun, planetary atmospheres, industrial manufacturing, and many other places. Physicists and engineers have made much progress in understanding this phenomenon in simple laboratory geometries, but still have a way to go before they are able to extrapolate to the extr...
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We report preliminary results of a three-dimensional simulation of the buoyant rise of a strongly twisted, kinkunstable magnetic flux tube through a gravitationally stratified layer representing the solar convection zone. The numerical calculations employ the well-known anelastic approximation, which is suitable for studying slow, subsonic dynamical processes in the pressure-dominated, high-b p...
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Results from a numerical and analytical investigation of the solution of a nonlinear axially symmetric diffusion equation for the magnetic field are presented for the case when the nonlinear dependence of the diffusivity ν(B) on the magnetic field satisfies basic physical requirements. We find that for sufficiently strong nonlinearity (i.e. for sufficiently strong reduction of ν inside the tube...
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ژورنال
عنوان ژورنال: Physica Scripta
سال: 2012
ISSN: 0031-8949,1402-4896
DOI: 10.1088/0031-8949/86/01/018403