Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1779395 | New Astronomy | 2010 | 16 Pages |
Abstract
We discuss the general design of the ANTARES code which is intended for simulations in stellar hydrodynamics with radiative transfer and realistic microphysics in 1D, 2D and 3D. We then compare the quality of various numerical methods. We have applied ANTARES in order to obtain high resolution simulations of solar granulation which we describe and analyze. In order to obtain high resolution, we apply grid refinement to a region predominantly occupied by an exploding granule. Strong, rapidly rotating vortex tubes of small diameter (â¼100km) generated by the downdrafts and ascending into the photosphere near the granule boundaries evolve, often entering the photosphere from below in an arclike fashion. They essentially contribute to the turbulent velocity field near the granule boundaries.
Related Topics
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Physics and Astronomy
Astronomy and Astrophysics
Authors
H.J. Muthsam, F. Kupka, B. Löw-Baselli, C. Obertscheider, M. Langer, P. Lenz,