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

We aim to numerically study evolution of Alfv′en 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 simu...

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Bibliographic Details
Published in:Research in astronomy and astrophysics 2014-07, Vol.14 (7), p.855-863
Main Authors: Chmielewski, Piotr, Murawski, Krzysztof, Solov'ev, Alexandr A
Format: Article
Language:English
Subjects:
Astronomy
Chromosphere
Computer simulation
Evolution
FLASH
Magnetohydrodynamic equations
Magnetohydrodynamics
Mathematical models
Three dimensional
三维
太阳能
数值模拟
数值研究
漩涡
磁流体方程
通量管
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Summary:We aim to numerically study evolution of Alfv′en 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 Alfv′en 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.
ISSN:1674-4527
2397-6209
DOI:10.1088/1674-4527/14/7/007