Effective model of turbulent plasma convection in the tokamak core
It has been shown that low-frequency turbulent convection self-consistently developed in the tokamak core can be effectively described in the framework of a relatively simple model based on a closed system of weakly dissipative reduced magnetohydrodynamic-type equations. The results of the numerical...
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| Veröffentlicht in: | JETP letters 2010-01, Vol.90 (10), p.651-657 |
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| creator | Pastukhov, V. P. Chudin, N. V. |
| description | It has been shown that low-frequency turbulent convection self-consistently developed in the tokamak core can be effectively described in the framework of a relatively simple model based on a closed system of weakly dissipative reduced magnetohydrodynamic-type equations. The results of the numerical simulation of transient regimes, including regimes with sawtooth oscillations and with a fast spatial redistribution of the auxiliary heating power, are reported. The results indicate that the response of the resulting transport processes to fast changes in the external conditions is nondiffusive and nonlocal and are in reasonable agreement with experiments at various tokamaks. |
| doi_str_mv | 10.1134/S0021364009220044 |
| format | Article |
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| source | SpringerNature Journals |
| subjects | Atomic Biological and Medical Physics Biophysics Molecular Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Quantum Information Technology Solid State Physics Spintronics |
| title | Effective model of turbulent plasma convection in the tokamak core |
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