Toroidal velocity shear Kelvin-Helmholtz instabilities in strongly rotating tokamak plasmas
Strong sheared toroidal flows are predicted to drive parallel velocity shear Kelvin-Helmholtz oscillations unstable in spherical tokamak plasmas. Numerical simulations that include rotation in the equilibrium suggest that future spherical tokamaks will have an upper limit in uni-directional injected...
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| Veröffentlicht in: | Nuclear fusion 2012-04, Vol.52 (4), p.42005-4 |
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| container_issue | 4 |
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| container_title | Nuclear fusion |
| container_volume | 52 |
| creator | Chapman, I.T. Brown, S. Kemp, R. Walkden, N.R. |
| description | Strong sheared toroidal flows are predicted to drive parallel velocity shear Kelvin-Helmholtz oscillations unstable in spherical tokamak plasmas. Numerical simulations that include rotation in the equilibrium suggest that future spherical tokamaks will have an upper limit in uni-directional injected neutral beam heating in order to keep the sheared toroidal rotation below the critical level for the onset of the global parallel velocity shear Kelvin-Helmholtz instability. |
| doi_str_mv | 10.1088/0029-5515/52/4/042005 |
| format | Article |
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| language | eng |
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| subjects | Heating Kelvin-Helmholtz instability Neutral beams Nuclear fusion Oscillations Plasmas Shear Tokamak devices |
| title | Toroidal velocity shear Kelvin-Helmholtz instabilities in strongly rotating tokamak plasmas |
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