Application of the gyrokinetic velocity moment theory in finite beta plasma

doi:10.1063/5.0021178

HFCAS OpenIR

	Application of the gyrokinetic velocity moment theory in finite beta plasma
	Zhang, Debing 1; Xu, Yingfeng2 ; Yu, Limin 1; Xue, Erbing 1; Zheng, Shuyu 1; Zhang, Xianmei 1
	2020-10-01
发表期刊	PHYSICS OF PLASMAS
ISSN	1070-664X
通讯作者	Zhang, Xianmei(zhangxm@ecust.edu.cn)
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.
DOI	10.1063/5.0021178
关键词[WOS]	POLOIDAL FLOW ; ZONAL FLOWS ; CONFINEMENT ; TURBULENCE ; TRANSPORT ; EQUATIONS ; DRIVEN ; TRANSITION ; MODEL
收录类别	SCI
语种	英语
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]
项目资助者	National Natural Science Foundation of China ; Users with Excellence Project of Hefei Science Center CAS
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000585618700001
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/105260
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.East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230032, 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).