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An Accurate delta f Method for Neoclassical Transport Calculation
http://hdl.handle.net/10655/2345
http://hdl.handle.net/10655/2345e3543af5-60a8-4a3b-aff2-7c3833f0e069
| Item type | 研究報告書 / Research Paper(1) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-02-05 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | An Accurate delta f Method for Neoclassical Transport Calculation | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | "neoclassical transport, | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | drift kinetic equation | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | delta f algorithm | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Monte Carlo collision operator" | |||||||||||||
| 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 | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | metadata only access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||
| 著者 |
"Wang, W.X.
× "Wang, W.X.
× Nakajima, N.
× Murakami, S.
× Okamoto, M."
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | "A delta f method, solving drift kinetic equation, for neoclassical transport calculation is presented in detail. It is demonstrated that valid results essentially rely on the correct evaluation of marker density g in weight calculation. A general and accurate weighting scheme is developed without using some assumed g in weight equation for advancing particle weights, unlike the previous schemes. This scheme employs an additional weight function to directly solve g from its kinetic equation using the idea of delta f method. Therefore the severe constraint that the real marker distribution must be consistent with the initially assumed g during a simulation is relaxed. An improved like-particle collision scheme is presented. By performing compensation for momentum, energy and particle losses arising from numerical errors, the conservations of all the three quantities are greatly improved during collisions. Ion neoclassical transport due to self-collisions is examined under finite banana case as well as zero banana limit. A solution with zero particle and zero energy flux (in case of no temperature gradient) over whole poloidal section is obtained. With the improvement in both like-particle collision scheme and weighting scheme, the delta f simulation shows a significantly upgraded performance for neoclassical transport study." | |||||||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 1999-03-01 |
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| 報告書番号 | ||||||||||||||
| NIFS-588 | ||||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 0915-633X | |||||||||||||
