The rise of twisted magnetic flux tubes: A high Reynolds number adaptive grid calculation

被引:23
作者
Hughes, DW [1 ]
Falle, SAEG [1 ]
机构
[1] Univ Leeds, Dept Appl Math, Leeds LS2 9JT, W Yorkshire, England
关键词
MHD; Sun : magnetic fields;
D O I
10.1086/311762
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The rise of buoyant magnetic flux tubes is a problem of some importance in the context of the escape of magnetic field from the solar interior. By employing an adaptive grid code, we have been able to study the evolution of tubes at Reynolds numbers (kinetic and magnetic) considerably in excess of any considered in previous studies. The rise of the tube is markedly asymmetric. It is qualitatively different from that obtained by previous low Reynolds number simulations or from that predicted by the simple ideas of the thin flux tube approximation.
引用
收藏
页码:L57 / L60
页数:4
相关论文
共 14 条
[1]  
BAETCHELOR GK, 1967, INTRO FLUID DYNAMICS
[2]   THE NONLINEAR BREAKUP OF A MAGNETIC LAYER - INSTABILITY TO INTERCHANGE MODES [J].
CATTANEO, F ;
HUGHES, DW .
JOURNAL OF FLUID MECHANICS, 1988, 196 :323-+
[3]  
Dyke M. V., 1982, ALBUM FLUID MOTION
[4]   The physics of twisted magnetic tubes rising in a stratified medium: Two-dimensional results [J].
Emonet, T ;
Moreno-Insertis, F .
ASTROPHYSICAL JOURNAL, 1998, 492 (02) :804-821
[5]  
FALLE SAE, 1993, NUMERICAL METHODS FL, V4, P335
[6]   Two-dimensional simulations of buoyantly rising, interacting magnetic flux tubes [J].
Fan, Y ;
Zweibel, EG ;
Lantz, SR .
ASTROPHYSICAL JOURNAL, 1998, 493 (01) :480-+
[7]   The rise of twisted magnetic flux tubes [J].
Hughes, DW ;
Falle, SAEG ;
Joarder, P .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 298 (02) :433-444
[8]  
HUGHES DW, 1992, NATO ADV SCI I C-MAT, V375, P371
[9]   The large-scale structure of FR-II radio sources [J].
Komissarov, SS ;
Falle, SAEG .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 297 (04) :1087-1108
[10]   MAGNETIC BUOYANCY, VORTICITY, AND 3-DIMENSIONAL FLUX-TUBE FORMATION [J].
MATTHEWS, PC ;
HUGHES, DW ;
PROCTOR, MRE .
ASTROPHYSICAL JOURNAL, 1995, 448 (02) :938-941