Magnetohydrodynamics equilibrium of a self-confined elliptic plasma ball

doi:10.1063/1.859623

IMECH-IR > 力学所知识产出(1956-2008)

	Magnetohydrodynamics equilibrium of a self-confined elliptic plasma ball
	Wu HM(吴汉明); Oakes ME
发表期刊	Physics of Fluids B-Plasma Physics
	1991
卷号	3 期号:8 页码:2113-2116
ISSN	0899-8221
摘要	A variational principle is applied to the problem of magnetohydrodynamics (MHD) equilibrium of a self-contained elliptical plasma ball, such as elliptical ball lightning. The principle is appropriate for an approximate solution of partial differential equations with arbitrary boundary shape. The method reduces the partial differential equation to a series of ordinary differential equations and is especially valuable for treating boundaries with nonlinear deformations. The calculations conclude that the pressure distribution and the poloidal current are more uniform in an oblate self-confined plasma ball than that of an elongated plasma ball. The ellipticity of the plasma ball is obviously restricted by its internal pressure, magnetic field, and ambient pressure. Qualitative evidence is presented for the absence of sighting of elongated ball lightning.
DOI	10.1063/1.859623
收录类别	SCI
语种	英语
WOS记录号	WOS:A1991FY44800032
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/39526
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Wu HM,Oakes ME. Magnetohydrodynamics equilibrium of a self-confined elliptic plasma ball[J]. Physics of Fluids B-Plasma Physics,1991,3,8,:2113-2116.
APA	吴汉明,&Oakes ME.(1991).Magnetohydrodynamics equilibrium of a self-confined elliptic plasma ball.Physics of Fluids B-Plasma Physics,3(8),2113-2116.
MLA	吴汉明,et al."Magnetohydrodynamics equilibrium of a self-confined elliptic plasma ball".Physics of Fluids B-Plasma Physics 3.8(1991):2113-2116.

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