2011 Fiscal Year Final Research Report
Collapse phenomena of toroidal plasma by nonlinear MHD simulation
| Project/Area Number |
20760583
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
MIZUGUCHI Naoki 核融合科学研究所, ヘリカル研究部, 准教授 (70332187)
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| Project Period (FY) |
2008 – 2011
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| Keywords | MHD / シミュレーション / 崩壊現象 / ヘリオトロン / RFP |
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| Research Abstract |
Nonlinear Magnetohydrodynamic(MHD) simulations have been executed for a comprehensive modeling of collapse phenomena in toroidal plasmas. The edge-localized mode(ELM) in spherical tokamak, the core density collapse(CDC) in heliotron, and the helical structure formation in reversed-field pinch(RFP) have been examined, comparing with experimental observations. Several common natures such as the magnetic reconnections under the pressure gradient which cause three-dimensional relaxed structures have been found out.
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