A simulation of solar convection at supergranulation scale

M Rieutord, Hans-Günter Ludwig, T Roudier, A Nordlund, R Stein

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17 Citations (SciVal)

Abstract

We present here numerical simulations of surface solar convection which cover a box of 30 x 30 x 3.2 Mm(3) with a resolution of 315 x 315 x 82, which is used to investigate the dynamics of scales larger than granulation. No structure resembling supergranulation is present; possibly higher Reynolds numbers (i.e. higher numerical resolution), or magnetic fields, or greater depth are necessary. The results also show interesting aspects of granular dynamics which are briefly presented, like extensive p-mode ridges in the k-w diagram and a ringlike distribution of horizontal vorticity around granules. At large scales, the horizontal velocity is much larger than the vertical velocity and the vertical motion is dominated by p-mode oscillations.
Original languageEnglish
Pages (from-to)523-528
JournalNuovo Cimento C. Colloquia on Physics
Volume25
Issue number5-6
Publication statusPublished - 2002

Subject classification (UKÄ)

  • Astronomy, Astrophysics and Cosmology

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