Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions
文献类型：期刊论文
| 作者 | Zakharov, Leonid E.1; Li, Xujing2 |
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 22期号:6页码:21 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/1.4922896 |
| 英文摘要 | This paper formulates the Tokamak Magneto-Hydrodynamics (TMHD), initially outlined by X. Li and L. E. Zakharov [Plasma Science and Technology 17(2), 97-104 (2015)] for proper simulations of macroscopic plasma dynamics. The simplest set of magneto-hydrodynamics equations, sufficient for disruption modeling and extendable to more refined physics, is explained in detail. First, the TMHD introduces to 3-D simulations the Reference Magnetic Coordinates (RMC), which are aligned with the magnetic field in the best possible way. The numerical implementation of RMC is adaptive grids. Being consistent with the high anisotropy of the tokamak plasma, RMC allow simulations at realistic, very high plasma electric conductivity. Second, the TMHD splits the equation of motion into an equilibrium equation and the plasma advancing equation. This resolves the 4 decade old problem of Courant limitations of the time step in existing, plasma inertia driven numerical codes. The splitting allows disruption simulations on a relatively slow time scale in comparison with the fast time of ideal MHD instabilities. A new, efficient numerical scheme is proposed for TMHD. (C) 2015 AIP Publishing LLC. |
| 资助项目 | U.S. DoE[DE-AC02-09-CH11466] ; Chinese National Magnetic Confinement Fusion Science Program[2011GB105003] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000357689500038 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/20266]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Zakharov, Leonid E. |
| 作者单位 | 1.Princeton Plasma Phys Lab, Princeton, NJ 08543 USA 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zakharov, Leonid E.,Li, Xujing. Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions[J]. PHYSICS OF PLASMAS,2015,22(6):21. |
| APA | Zakharov, Leonid E.,&Li, Xujing.(2015).Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions.PHYSICS OF PLASMAS,22(6),21. |
| MLA | Zakharov, Leonid E.,et al."Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions".PHYSICS OF PLASMAS 22.6(2015):21. |
入库方式： OAI收割
来源：数学与系统科学研究院
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