Collisional damping of the geodesic acoustic mode with poloidal rotation

doi:10.1063/1.4983319

	Collisional damping of the geodesic acoustic mode with poloidal rotation
	Xie, Baoyi 1,2,3; Guo, Wenfeng1,3 ; Xiang, Nong 1,3
	2017-05-01
发表期刊	PHYSICS OF PLASMAS
摘要	The collisional damping of the geodesic acoustic mode is investigated by using the gyrokinetic equation with a poloidal rotation flow and a number-conserving Krook collision operator. A dispersion relation of the geodesic acoustic mode with poloidal rotation and collision terms is derived and solved both analytically and numerically. It is shown that poloidal rotation has a significant influence on the collisional damping rate of the geodesic acoustic mode within a certain collision rate and safety factor domain. The variation of the damping rate induced by poloidal rotation depends on the safety factor and collision rate. In addition, the effect of poloidal rotation on the geodesic acoustic mode would be weakened by the safety factor, especially when the safety factor is relatively large. The ratio of the collisional damping rate to the collisionless damping rate of the geodesic acoustic mode in the large safety factor domain is performed, and the critical collision rate is estimated. Besides, the physical mechanism of the results is briefly discussed. Published by AIP Publishing.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1063/1.4983319
关键词[WOS]	ZONAL FLOWS ; TRANSPORT ; PLASMAS ; WAVES
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Natural Science Foundation of China(11105175 ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; National Magnetic Confinement Fusion Science Program of China(2015GB110001) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219)
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000400817900045
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31872
专题	中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China
第一作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Xie, Baoyi,Guo, Wenfeng,Xiang, Nong. Collisional damping of the geodesic acoustic mode with poloidal rotation[J]. PHYSICS OF PLASMAS,2017,24(5):1-6.
APA	Xie, Baoyi,Guo, Wenfeng,&Xiang, Nong.(2017).Collisional damping of the geodesic acoustic mode with poloidal rotation.PHYSICS OF PLASMAS,24(5),1-6.
MLA	Xie, Baoyi,et al."Collisional damping of the geodesic acoustic mode with poloidal rotation".PHYSICS OF PLASMAS 24.5(2017):1-6.

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