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http://hdl.handle.net/1903/1774
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| Title: | Magnetohydrodynamic equilibrium and stability of centrifugally confined plasmas |
| Authors: | Huang, Yi-Min |
| Advisors: | Hassam, Adil B |
| Department/Program: | Physics |
| Type: | Dissertation |
| Sponsors: | Digital Repository at the University of Maryland
University of Maryland (College Park, Md.) |
| Keywords: | Physics, Fluid and Plasma (0759)
Plasma confinement, flute interchanges, velocity shear stabilization, Kelvin-Helmholtz instability, magnetorotational instability, Parker instability |
| Issue Date: | 10-Aug-2004 |
| Abstract: | Centrifugal confinement is an alternative approach to magnetic fusion, employing a magnetic field with an open field line configuration. In this scheme, a plasma with magnetic mirror geometry is made to rotate azimuthally at supersonic speeds. The resulting centrifugal forces, given the field line curvature, prevent the plasma from escaping along the field lines. This dissertation addresses the equilibrium and stability of this configuration within the framework of magnetohydrodynamics (MHD). Well confined equilibrium with desirable profiles is demonstrated by numerical simulation. As far as stability is concerned, four types of magnetohydrodynamic modes determine the overall stability of centrifugally confined plasmas: flute interchanges and the Kelvin--Helmholtz instability, in a low $\beta$ system, and the magnetorotational instability (MRI) and the Parker instability, in a high $\beta$ system. One of the underpinnings of the centrifugal confinement is that flute interchange... |
| URI: | http://hdl.handle.net/1903/1774 |
| Appears in Collections: | Physics Theses and Dissertations
UM Theses and Dissertations
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| umi-umd-1752.pdf | | 1973Kb | Adobe PDF | 142 | View/Open |
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