THE ROLE OF VORTICITY IN 3D MAGNETIC-FIELD ANNIHILATION

Citation
M. Jardine et al., THE ROLE OF VORTICITY IN 3D MAGNETIC-FIELD ANNIHILATION, Space science reviews, 68(1-4), 1994, pp. 115-116
Citations number
3
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00386308
Volume
68
Issue
1-4
Year of publication
1994
Pages
115 - 116
Database
ISI
SICI code
0038-6308(1994)68:1-4<115:TROVI3>2.0.ZU;2-2
Abstract
We show that magnetic field annihilation depends strongly on the behav iour of the vorticity and is quite different in 2D and 3D. In 3D the v orticity can be increased locally by the stretching of vortex lines (a n effect that is absent in 2D). This leads to the onset of cellular fl ow at quite low vorticities and the fragmentation of the simple curren t sheet.