Excitation of geodesic acoustic mode in toroidal plasmas
| العنوان: | Excitation of geodesic acoustic mode in toroidal plasmas |
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| المؤلفون: | Sanae I. Itoh, Klaus Hallatschek, Kimitaka Itoh |
| المصدر: | Plasma Physics and Controlled Fusion. 47:451-458 |
| بيانات النشر: | IOP Publishing, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Physics, Tokamak, Geodesic, Turbulence, K-epsilon turbulence model, Magnetic confinement fusion, Mechanics, K-omega turbulence model, Condensed Matter Physics, Instability, Statistics::Computation, law.invention, Nonlinear Sciences::Chaotic Dynamics, Physics::Fluid Dynamics, Classical mechanics, Nuclear Energy and Engineering, Physics::Plasma Physics, law, Dispersion relation, Physics::Space Physics |
| الوصف: | The instability of the geodesic acoustic mode (GAM) in tokamak turbulence is analysed. It can be caused by dynamic shearing of the ambient turbulence by GAMs combined with the poloidal inhomogeneity of the turbulent flux. The dispersion relation is derived. The competition between the drive mechanism and the damping by turbulence viscosity is discussed. GAMs are more unstable for high safety factors. |
| تدمد: | 1361-6587 0741-3335 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::47950bcf3126d2cd74f82881f34459c4 https://doi.org/10.1088/0741-3335/47/3/004 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........47950bcf3126d2cd74f82881f34459c4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616587 07413335 |
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