Application of the gyrokinetic velocity moment theory in finite beta plasma
文献类型：期刊论文
| 作者 | Zhang, Debing2; Xu, Yingfeng1 ; Yu, Limin2; Xue, Erbing2; Zheng, Shuyu2; Zhang, Xianmei2
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 27 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0021178 |
| 通讯作者 | Zhang, Xianmei(zhangxm@ecust.edu.cn) |
| 英文摘要 | The calculation of the velocity moment in the gyrokinetic theory is investigated in the finite beta plasma. According to the scalar invariance property in the Lie-transform method, the particle velocity in terms of the gyrocenter coordinates is derived, where the drift velocity driven by the second-order Hamiltonian is illustrated. The parallel component of particle velocity is found to be the same as that from the pull-back transformation of the parallel velocity variable (nu) over bar (parallel to). The parallel and perpendicular velocity moments are systematically calculated according to the parallel and perpendicular components of particle velocity. The poloidal Reynolds stress (PRS) driven by the electromagnetic fluctuation is illustrated. By considering the magnetic drift resonance in the quasilinear analysis, the PRS contains two parts: one is related to the electrostatic fluctuation and the other is related to the parallel magnetic vector fluctuation; compared to the case with the electrostatic fluctuation, the PRS in the case with the electromagnetic fluctuation is enhanced by the electromagnetic effects, which may be beneficial for the enhancement of zonal flows and the reduction of turbulent transport. |
| WOS关键词 | POLOIDAL FLOW ; ZONAL FLOWS ; CONFINEMENT ; TURBULENCE ; TRANSPORT ; EQUATIONS ; DRIVEN ; TRANSITION ; MODEL |
| 资助项目 | National Natural Science Foundation of China[11875254] ; National Natural Science Foundation of China[11775265] ; National Natural Science Foundation of China[11675176] ; National Natural Science Foundation of China[11675053] ; Users with Excellence Project of Hefei Science Center CAS[2018HSC-UE009] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000585618700001 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National Natural Science Foundation of China ; Users with Excellence Project of Hefei Science Center CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/105259]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Xianmei |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230032, Peoples R China 2.East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Debing,Xu, Yingfeng,Yu, Limin,et al. Application of the gyrokinetic velocity moment theory in finite beta plasma[J]. PHYSICS OF PLASMAS,2020,27. |
| APA | Zhang, Debing,Xu, Yingfeng,Yu, Limin,Xue, Erbing,Zheng, Shuyu,&Zhang, Xianmei.(2020).Application of the gyrokinetic velocity moment theory in finite beta plasma.PHYSICS OF PLASMAS,27. |
| MLA | Zhang, Debing,et al."Application of the gyrokinetic velocity moment theory in finite beta plasma".PHYSICS OF PLASMAS 27(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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