Study of small scale effectts on macroscopic plasma instability based on extended MHD models for low collisionality plasmas
| Project/Area Number |
24740375
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plasma science
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
ITO Atsushi 核融合科学研究所, ヘリカル研究部, 助教 (70413987)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 電磁流体力学 / 拡張MHD / プラズマ不安定性 / 二流体MHD / 有限ラーマー半径効果 / プラズマ物理 |
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| Outline of Final Research Achievements |
Theoretical studies of small scale effects on macroscopic dynamics of plasmas are carried out based on extended magnetohydrodynamic models. Two-fluid and finite ion temperature effects on the Rayleig-Taylor and Kelvin-Helmholtz instabilities in finite beta plasmas are examined and new condtions for the absence of complete stabilization of high-wavenumber modes are found. Linear eigenmode equations for tearing mode instability to analyse effects of heat flux in gyroviscosity that is a finite ion temperature effect are derived. These effects are not negligible for low collisionality plasmas. Coordinate systems to study stability of toroidal equilibrium with flow are also constructed.
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Report
(4 results)
Research Products
(14 results)
