The mechanism of energy storage by shearing the solar magnetic field

IMECH-IR > 力学所知识产出(1956-2008)

	The mechanism of energy storage by shearing the solar magnetic field
	Liu XP(刘新萍)
发表期刊	Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences
	1988
卷号	31 期号:4 页码:461-469
ISSN	0253-5831
摘要	In this paper, a complete set of MHD equations have been solved by numerical calculations in an attempt to study the dynamical evolutionary processes of the initial equilibrium configuration and to discuss the energy storage mechanism of the solar atmosphere by shearing the magnetic field. The initial equilibrium configuration with an arch bipolar potential field obtained from the numerical solution is similar to the configuration in the vicinity of typical solar flare before its eruption. From the magnetic induction equation in the set of MHD equations and dealing with the non-linear coupling effects between the flow field and magnetic field, the quantitative relationship has been derived for their dynamical evolution. Results show that plasma shear motion at the bottom of the solar atmosphere causes the magnetic field to shear; meanwhile the magnetic field energy is stored in local regions. With the increase of time the local magnetic energy increases and it may reach an order of 4×10^25 J during a day. Thus the local storage of magnetic energy is large enough to trigger a big solar flare and can be considered as the energy source of solar flares. The energy storage mechanism by shearing the magnetic field can well explain the slow changes in solar active regions.
收录类别	SCI
语种	英语
WOS记录号	WOS:A1988N254100007
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/39682
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Liu XP. The mechanism of energy storage by shearing the solar magnetic field[J]. Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,1988,31,4,:461-469.
APA	刘新萍.(1988).The mechanism of energy storage by shearing the solar magnetic field.Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,31(4),461-469.
MLA	刘新萍."The mechanism of energy storage by shearing the solar magnetic field".Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences 31.4(1988):461-469.

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