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Nonlinear Simulation of Collapse Phenomenon in Helical Plasma with a Large Pressure Gradient
http://hdl.handle.net/10655/6371
http://hdl.handle.net/10655/63715630d9a5-2da8-4cda-a1c3-01657f78797a
名前 / ファイル | ライセンス | アクション |
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pfr2008_03-S1034.pdf (760.7 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-04-04 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Nonlinear Simulation of Collapse Phenomenon in Helical Plasma with a Large Pressure Gradient | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | magnetohydrodynamics | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | collapse | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | helical system | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | superdense core | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
MIZUGUCHI, Naoki
× MIZUGUCHI, Naoki× SUZUKI, Yasuhiro× OHYABU, Nobuyoshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Nonlinear magnetohydrodynamics (MHD) simulations are conducted for a helical plasma with a large pressure gradient to investigate the collapse event induced by MHD instabilities. The simulation results show that the ballooning-like instabilities on an intermediate spatial scale induce disordering of structures in the barrier region and a drop in the central pressure. It was revealed that the core pressure fall is related to disordering of the magnetic field structure. The simulation results are compared qualitatively with the experimental observations of the collapse events in the superdense core state of the Large Helical Device (LHD). Compared with our previous simulation studies of similar situations in the spherical tokamak (ST) plasma, the results for the helical cases show milder collapses than those in the ST case. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.3, p. S1034-1 - S1034-4, 発行日 2008-01-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.3.S1034 | |||||
権利 | ||||||
権利情報 | ? 2008 The Japan Society of Plasma Science and Nuclear Fusion Resear |