Energy transfer, pressure tensor, and heating of kinetic plasma

doi:10.1063/1.4990421

CORC > 北京大学 > 工学院

	Energy transfer, pressure tensor, and heating of kinetic plasma
	Yang, Yan ; Matthaeus, William H. ; Parashar, Tulasi N. ; Haggerty, Colby C. ; Roytershteyn, Vadim ; Daughton, William ; Wan, Minping ; Shi, Yipeng ; Chen, Shiyi
刊名	PHYSICS OF PLASMAS
	2017
关键词	COLLISIONLESS MAGNETIC RECONNECTION SOLAR-WIND TURBULENCE LARGE-EDDY SIMULATION FINE-SCALE MOTIONS MAGNETOHYDRODYNAMIC TURBULENCE COMPRESSIBLE TURBULENCE ISOTROPIC TURBULENCE CURRENT SHEETS DISSIPATION HYPOTHESIS
DOI	10.1063/1.4990421
英文摘要	Kinetic plasma turbulence cascade spans multiple scales ranging from macroscopic fluid flow to sub-electron scales. Mechanisms that dissipate large scale energy, terminate the inertial range cascade, and convert kinetic energy into heat are hotly debated. Here, we revisit these puzzles using fully kinetic simulation. By performing scale-dependent spatial filtering on the Vlasov equation, we extract information at prescribed scales and introduce several energy transfer functions. This approach allows highly inhomogeneous energy cascade to be quantified as it proceeds down to kinetic scales. The pressure work, -(P . del) . u, can trigger a channel of the energy conversion between fluid flow and random motions, which contains a collision-free generalization of the viscous dissipation in collisional fluid. Both the energy transfer and the pressure work are strongly correlated with velocity gradients. Published by AIP Publishing.; NASA [NNX14AI63G]; Parker Solar Probe science team (ISOIS/SWRI) [D99031L]; MMS Theory and Modeling team [NNX14AC39G]; China Scholarship Council; National Natural Science Foundation of China (NSFC) [11672123]; [AGS-1460130]; SCI(E); ARTICLE; 7; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472349]
专题	工学院
推荐引用方式 GB/T 7714	Yang, Yan,Matthaeus, William H.,Parashar, Tulasi N.,et al. Energy transfer, pressure tensor, and heating of kinetic plasma[J]. PHYSICS OF PLASMAS,2017.
APA	Yang, Yan.,Matthaeus, William H..,Parashar, Tulasi N..,Haggerty, Colby C..,Roytershteyn, Vadim.,...&Chen, Shiyi.(2017).Energy transfer, pressure tensor, and heating of kinetic plasma.PHYSICS OF PLASMAS.
MLA	Yang, Yan,et al."Energy transfer, pressure tensor, and heating of kinetic plasma".PHYSICS OF PLASMAS (2017).