Time diffusion method for gyrokinetic simulation of electrostatic turbulence with kinetic electrons
文献类型：期刊论文
| 作者 | Zhao, PengFei1,2; Ye, Lei1 ; Xiang, Nong1
|
| 刊名 | COMPUTER PHYSICS COMMUNICATIONS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 269 |
| 关键词 | Gyrokinetic simulation Kinetic electron Trapped electron mode (TEM) Nonlinear turbulence Numerical diffusion |
| ISSN号 | 0010-4655 |
| DOI | 10.1016/j.cpc.2021.108114 |
| 通讯作者 | Ye, Lei(lye@ipp.ac.cn) ; Xiang, Nong(xiangn@ipp.ac.cn) |
| 英文摘要 | A new method based on a time diffusion technique is developed to mitigate the numerical instability induced by the high frequency electrostatic shear Alfven wave (omega(H) mode) in the gyrokinetic simulation of electrostatic turbulence. It can preserve fully drift-kinetic electron effects and can be incorporated efficiently with explicit time integration scheme. This method has been implemented in the semi-Lagrangian gyrokinetic code NLT (Lei Ye, et al. (2016) [25]) and applied successfully to linear and nonlinear ITG/TEM turbulence simulation. Numerical results show that this time diffusion method can greatly enlarge time step size and improve numerical stability for electrostatic turbulence simulation in tokamaks. (C) 2021 Elsevier B.V. All rights reserved. |
| 资助项目 | National MCF Energy R&D Program of China[2019YFE03060000] ; National Key R&D Program of China[2017YFE0300406] ; National Natural Science Foundation of China[11975272] |
| WOS研究方向 | Computer Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000695246200022 |
| 出版者 | ELSEVIER |
| 资助机构 | National MCF Energy R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/125301]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ye, Lei; Xiang, Nong |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, PengFei,Ye, Lei,Xiang, Nong. Time diffusion method for gyrokinetic simulation of electrostatic turbulence with kinetic electrons[J]. COMPUTER PHYSICS COMMUNICATIONS,2021,269. |
| APA | Zhao, PengFei,Ye, Lei,&Xiang, Nong.(2021).Time diffusion method for gyrokinetic simulation of electrostatic turbulence with kinetic electrons.COMPUTER PHYSICS COMMUNICATIONS,269. |
| MLA | Zhao, PengFei,et al."Time diffusion method for gyrokinetic simulation of electrostatic turbulence with kinetic electrons".COMPUTER PHYSICS COMMUNICATIONS 269(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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