Numerical simulations of three-dimensional magnetic swirls in a solar flux-tube

被引：5
|
作者：
Chmielewski, Piotr [1 ]
Murawski, Krzysztof [1 ]
Solov'ev, Alexandr A. [2 ]
机构：
[1] Univ Maria Curie Sklodowska, Grp Astrophys, PL-20031 Lublin, Poland
[2] Pulkovo Astron Observ, St Petersburg 196140, Russia
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2014年 / 14卷 / 07期
关键词：
MHD; Sun: magnetic fields; Alfven waves propagation; TORSIONAL ALFVEN WAVES; STAGGERED MESH SCHEME; DRIVEN VORTEX FLOWS; CORONA; CHROMOSPHERE; SUN; MAGNETOHYDRODYNAMICS; MOTIONS;
D O I：
10.1088/1674-4527/14/7/007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We aim to numerically study evolution of Alfven waves that accompany short-lasting swirl events in a solar magnetic flux-tube that can be a simple model of a magnetic pore or a sunspot. With the use of the FLASH code we numerically solve three-dimensional ideal magnetohydrodynamic equations to simulate twists which are implemented at the top of the photosphere in magnetic field lines of the flux-tube. Our numerical results exhibit swirl events and Alfven waves with associated clockwise and counterclockwise rotation of magnetic lines, with the largest values of vorticity at the bottom of the chromosphere, and a certain amount of energy flux.
引用
收藏
页码：855 / 863
页数：9
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