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Anomalous Transport Theory for Toroidal Helical Plasmas
http://hdl.handle.net/10655/2950
http://hdl.handle.net/10655/295020b4cb8a-02aa-4a30-a668-33cb904e00a9
名前 / ファイル | ライセンス | アクション |
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NIFS-296.pdf (402.1 kB)
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Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Anomalous Transport Theory for Toroidal Helical Plasmas | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | anomalous transport | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stellarator | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | heliotron | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | torsatron | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | improved confinement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | nonlinear simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | current diffusivity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | self-sustained turbulence | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
著者 |
Itoh, K.
× Itoh, K.× Yagi, M.× Itoh, S.-I.× Fukuyama, A.× Sanuki, H.× Azumi, M. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Anomalous transport coefficients in toroidal helical plasmas are studied, based on the innovative theoretical method. The self-sustained turbulence is analyzed by balancing the nonlinear growth due to the current diffusivity with the nonlinear damping by the ion viscosity and thermal conductivity. Interchange and ballooning mode turbulence is investigated, and the geometrical dependence of the anomalous transport coefficient is clarified. Variation of transport owing to the geometrical difference in toroidal helical plasmas is illustrated. The mechanism for confinement improvement is searched for. To verify the nonlinear destabilization and the self-sustained state, the nonlinear simulation of the interchange mode turbulence is performed in sheared slab. It is demonstrated that the nonlinear enhancement of the growth rate occurs when the fluctuation amplitude exceeds the critical level. In the saturation stage, the fluctuation level becomes higher associated with the enhanced nonlinear growth. | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1994-08-01 |
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報告書番号 | ||||||
NIFS-296 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |