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A charge-momentum-energy-conserving 1D3V hybrid Lagrangian-Eulerian method for Vlasov-Maxwell system
https://repo.qst.go.jp/records/2000354
https://repo.qst.go.jp/records/20003547b600d39-3106-4de9-a9df-198b767ae713
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-11-30 | |||||||||||
| タイトル | ||||||||||||
| タイトル | A charge-momentum-energy-conserving 1D3V hybrid Lagrangian-Eulerian method for Vlasov-Maxwell system | |||||||||||
| 言語 | en | |||||||||||
| 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_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
Shiroto Takashi
× Shiroto Takashi
× Matsuyama Akinobu
× Yagi Masatoshi
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Here we propose hybrid Lagrangian?Eulerian (HLE) method for kinetic simulations of plasmas. The HLE method solves advection equations of shape functions unlike particle- in-cell (PIC) method. Although the PIC method cannot preserve the conservation laws of momentum and energy simultaneously, the HLE method can resolve this issue while the particle velocity is formulated by the Lagrangian description. The HLE method discretizes the advection equations and Maxwell’s equations with the same scheme, so the momentum and energy exchange between charged particles and electromagnetic field exactly balances in discrete level. Numerical experiments show that linear growth rates of two-stream and Weibel instabilities are reproduced well, and global conservation is exactly preserved except for round-off errors although the velocity space is discretized by the Lagrangian description like the PIC method. | |||||||||||
| 書誌情報 |
Journal of Computational Physics 巻 469, p. 111522, 発行日 2022-08 |
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| 出版者 | ||||||||||||
| 出版者 | Elsevier Inc. | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1090-2716 | |||||||||||
| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1016/j.jcp.2022.111522 | |||||||||||
