Abstract
The dynamo effect due to neoclassical tearing modes is considered. It is found that the global constraints on energy and helicity balance require a redefinition of the dynamo field in neoclassical magnetohydrodynamics. The parallel dynamo field is calculated from the boundary-layer equations governing tearing modes. This dynamo effect can sustain a completely bootstrapped tokamak. A typical steady-state current profile has a core region of weak pressure gradients surrounded by a region of strong pressure gradients, where the current profile is entirely due to the bootstrap effect.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3661-3667 |
| Number of pages | 7 |
| Journal | Physics of Fluids B |
| Volume | 5 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1993 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Computational Mechanics
- Condensed Matter Physics
- Mechanics of Materials
- General Physics and Astronomy
- Fluid Flow and Transfer Processes
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