发表状态 | 已发表Published |
题名 | A combined immersed finite element and conservative semi-Lagrangian scheme for plasma-material interactions |
作者 | |
发表日期 | 2023-09-01 |
发表期刊 | Journal of Computational Physics
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ISSN/eISSN | 0021-9991 |
卷号 | 488 |
摘要 | In this paper, the immersed finite element (IFE) coupled with the conservative semi-Lagrangian (CSL) kinetic scheme is developed for plasma-material interactions. The proposed method (IFE-CSL) enjoys respective advantages of the IFE and CSL, i.e., the flexibility and efficiency for treating complex boundary conditions, mass conservation and being free from the Courant-Friedrichs-Lewy (CFL) condition. In the current IFE-CSL, the IFE method based on structured interface-independent meshes is developed for the spatial discretization of the field equation, which provides an accurate approach with convenient implementations to solve the field problems with irregular interface. The CSL scheme combined with an immersed method termed half-way ghost-cell is proposed for the spatial discretization of the Vlasov equation, which enables the proposed method to exactly conserve mass and conveniently handle curved boundaries. Then the IFE and CSL method are coupled via the charge density depending on full kinetic or hybrid kinetic model, where the appropriate IFE solver is developed for the linear or nonlinear Poisson equation, respectively. In the current IFE-CSL, different geometries can be treated automatically for both IFE and CSL through the specific geometric information. As a result, the proposed CSL-IFE can be conveniently and efficiently applied to simulate the plasma-material interactions with structured interface-independent meshes. Finally, several numerical experiments are performed to demonstrate the capabilities of the proposed method. |
关键词 | Immersed finite element Plasma-material interactions Semi-Lagrangian scheme Vlasov-Possion system |
DOI | 10.1016/j.jcp.2023.112232 |
URL | 查看来源 |
收录类别 | SCIE |
语种 | 英语English |
WOS研究方向 | Computer Science ; Physics |
WOS类目 | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
WOS记录号 | WOS:001019602800001 |
Scopus入藏号 | 2-s2.0-85160868598 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://repository.uic.edu.cn/handle/39GCC9TT/10820 |
专题 | 理工科技学院 |
通讯作者 | Cai, Xiaofeng; Cao, Yong |
作者单位 | 1.School of Mechanical Engineering and Automation,Harbin Institute of Technology,Shenzhen,518055,China 2.Center for Mathematical Plasma Astrophysics,Department of Mathematics,KU Leuven,Leuven,3001,Belgium 3.Research Center for Mathematics,Advanced Institute of Natural Sciences,Beijing Normal University,Zhuhai,519087,China 4.Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science,BNU-HKBU United International College,Zhuhai,519087,China |
通讯作者单位 | 北师香港浸会大学 |
推荐引用方式 GB/T 7714 | Liu, Hongtao,Chen, Mengyu,Cai, Xiaofenget al. A combined immersed finite element and conservative semi-Lagrangian scheme for plasma-material interactions[J]. Journal of Computational Physics, 2023, 488. |
APA | Liu, Hongtao, Chen, Mengyu, Cai, Xiaofeng, Cao, Yong, & Lapenta, Giovanni. (2023). A combined immersed finite element and conservative semi-Lagrangian scheme for plasma-material interactions. Journal of Computational Physics, 488. |
MLA | Liu, Hongtao,et al."A combined immersed finite element and conservative semi-Lagrangian scheme for plasma-material interactions". Journal of Computational Physics 488(2023). |
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