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Numerical study of the role of higher order flows in neoclassical transport of high-Z impurities
https://repo.qst.go.jp/records/67034
https://repo.qst.go.jp/records/67034884e8cd1-e5db-46ba-8b96-313e8892c2c8
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-12-17 | |||||
| タイトル | ||||||
| タイトル | Numerical study of the role of higher order flows in neoclassical transport of high-Z impurities | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Obrejan, Kevin
× Obrejan, Kevin× 井戸村, 泰宏× 本多, 充× 井戸村 泰宏× 本多 充 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To better treat heavy impurities, the gyrokinetic full-f Eulerian simulation code GT5D was recently upgraded with an implicit collision solver based on a multi-species linear Fokker-Plank collision operator. While the commonly employed low order approximation of the theory showed good agreement for bulk ions and light impurities, large differences were observed in the presence of moderate or large temperature gradients. Taking into account higher order flows to more accurately recover the friction coefficients in the Pfirsch-Schlüter regime shows good agreement with GT5D.The strong dependency of this new thermal screening factor on electron mass was found to be a potential problem for simulations using kinetic electrons of large masses. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 閉じ込め・輸送研究会２０１８ | |||||
| 発表年月日 | ||||||
| 日付 | 2018-12-12 | |||||
| 日付タイプ | Issued | |||||
