MHD flows in the channels of plasma accelerators with a longitudinal magnetic field
- Russian Academy of Sciences, Keldysh Institute of Applied Mathematics (Russian Federation)
Plasma flows caused by the interaction of the discharge current with the azimuthal magnetic self-field in coaxial channels (nozzles) of plasma accelerators are strongly affected by the longitudinal field produced by external conductors. A two-dimensional MHD model of flows in channels in the presence of a longitudinal magnetic field is proposed. Depending on the ratio between the characteristic values of the longitudinal and azimuthal field components, one of three types of flow is established in the channel: super-Alfven, sub-Alfven, or combined. The properties of different types of flows are analyzed. The acceleration process in sub-Alfven flows differs qualitatively from that in regimes without a longitudinal field in transitions between the kinetic, thermal, and magnetic energy components.
- OSTI ID:
- 21399933
- Journal Information:
- Plasma Physics Reports, Vol. 34, Issue 12; Other Information: DOI: 10.1134/S1063780X08120076; Copyright (c) 2008 Pleiades Publishing, Ltd.; ISSN 1063-780X
- Country of Publication:
- United States
- Language:
- English
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