Abstract
The effects of line tying on resistive tearing instability in slab geometry are studied within the framework of reduced magnetohydrodynamics [B. B. Kadomtsev and O. P. Pogutse, Sov. Phys. JETP 38, 283 (1974); H. R. Strauss, Phys. Fluids 19, 134 (1976)]. It is found that line tying has a stabilizing effect. The tearing mode is stabilized when the system length L is shorter than a critical length Lc, which is independent of the resistivity η. When L is not too much longer than Lc, the growth rate γ is proportional to η. When L is sufficiently long, the tearing mode scaling γ∼ η3/5 is recovered. The transition from γ∼η to γ∼ η3/5 occurs at a transition length Lt ∼ η-2/5.
Original language | English (US) |
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Article number | 042102 |
Journal | Physics of Plasmas |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics