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Non-dissipative Kinetic Simulation and Analytical Solution of Three-mode Equations of Ion Temperature Gradient Instability
http://hdl.handle.net/10655/2627
http://hdl.handle.net/10655/26273ea575e6-77b0-4770-822e-40b41c1bdc3d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
NIFS-619.pdf (583.5 kB)
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| Item type | 研究報告書 / Research Paper(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-02-05 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Non-dissipative Kinetic Simulation and Analytical Solution of Three-mode Equations of Ion Temperature Gradient Instability | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Computer simulation | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | numerical algorithm | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | drift waves | |||||||||||
| 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 |
Watanabe, T.-H.
× Watanabe, T.-H.
× Sugama, H.
× Sato, T.
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | A non-dissipative drift kinetic simulation scheme, which regorously satisfies the time-reversibility, is applies to the three-mode coupling problem of the ion temperature gradient (ITG) instability. It is found from the simulation that the three-mode ITG system repeats growth and decay with a period which shows a logarithmic divergence for infinitesimal initial perturbations. Accordingly, time average of the mode amplitude vanishes, as the initial amplitude approaches to zero. An exact solution is analytically given for a class of initial conditions. An excellent agreement is confirmed between the analytical solution and numerical results. The results obtained here provide a useful reference for basic benchmarking of theories and simulations of the ITG modes. | |||||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 1999-12-01 |
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| 報告書番号 | ||||||||||||
| NIFS-619 | ||||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 0915-633X | |||||||||||
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Cite as
Watanabe, T.-H., Sugama, H., Sato, T., 1999, Non-dissipative Kinetic Simulation and Analytical Solution of Three-mode Equations of Ion Temperature Gradient Instability.
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