Phase-Mixing and Dissipation of Standing Shear Alfvén Waves

Publications of the Astronomical Society of Australia

K. Karami¹ 

[1] Z. Ebrahimi

关键词: sun: corona;    sun: magnetic fields;    sun: oscillations;   

DOI  :  10.1071/AS09019

学科分类：天文学(综合)

来源: CSIRO

【 摘 要 】

We study the phase mixing and dissipation of a packet of standing shear Alfvén waves localized in a region with non-uniform Alfvén background velocity. We investigate the validity of the exponential damping law in time, exp (–At3), presented by Heyvaerts & Priest (1983) for different ranges of Lundquist, S, and Reynolds, R, numbers. Our numerical results shows that it is valid for (R,S) ≥ 107.

【 授权许可】

Unknown