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	Analysis And Statistics Of Discontinuities As Obtained From 3D Simulation Of MHD Turbulence
	Zhang, Lei ; He, Jian-Sen ; Tu, Chuan-Yi ; Yang, Li-Ping ; Wang, Xin ; Marsch, Eckart ; Wang, Ling-Hua
	2016
关键词	SOLAR-WIND ROTATIONAL DISCONTINUITIES
英文摘要	The turbulent solar wind abounds with MHD discontinuities, and such discontinuities are often found in close connection with turbulence intermittency, constituting a possible main contributor to the turbulence dissipation and solar wind heating. Among the discontinuities, tangential (TD) and rotational (RD) ones are two most important types. Recently, the connection between turbulence intermittency and proton thermodynamics has been being intensively investigated. Such connections are founded to he involved with MHD instablilities, but the difference of TDs an RDs in this process has not yet been covered. Herewith we define new methods for identifying TDs and RDs obtained from a three-dimensional MUD simulation with pressure anisotropy. kspecially, we define the Total Variance of Increments (TVI) as a new measure of magnetic field changes. Based on the identified cases, we compare their occurrence rates and heating effects. More specifically, we find that the thermal states embedding TDs. compared with their RD counterparts, tend to be more associated with extreme plasma parameters or instabilites. Some other possible applications of TVI-like norms are also herewith discussed.; NSFC [41231069, 41174148, 41222032, 41274132, 41474147, 41031066, 41304133]; CPCI-S(ISTP); jshept@pku.edu.cn; 1720
语种	英语
出处	14th International Solar Wind Conference (Solar Wind)
DOI标识	10.1063/1.4943834
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/459700]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang, Lei,He, Jian-Sen,Tu, Chuan-Yi,et al. Analysis And Statistics Of Discontinuities As Obtained From 3D Simulation Of MHD Turbulence. 2016-01-01.

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