DEMONSTRATION OF HELICITY CONSERVATION DURING MAGNETIC RECONNECTION USING CHRISTMAS RIBBONS

被引：28

作者：

PFISTER, H

GEKELMAN, W

机构：

来源：

AMERICAN JOURNAL OF PHYSICS | 1991年 / 59卷 / 06期

关键词：

D O I：

10.1119/1.16808

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

This article shows how a simple Christmas ribbon can be used to demonstrate a relatively complex physical phenomenon: the conservation of helicity during magnetic reconnection. The physical term, helicity, and the process of magnetic reconnection will be introduced and explained in detail. The "helicity meter," a very simple device that will help in the determination of the helicity of certain topological configurations, will also be introduced.

引用

收藏

页码：497 / 502

页数：6

相关论文

共 33 条

[1] FORCE-FREE MAGNETIC-FIELD STRUCTURES AND THEIR ROLE IN SOLAR-ACTIVITY [J].

BARNES, CW ;

STURROCK, PA .

ASTROPHYSICAL JOURNAL, 1972, 174 (03) :659-&

[2] THE TOPOLOGICAL PROPERTIES OF MAGNETIC HELICITY [J].

BERGER, MA ;

FIELD, GB .

JOURNAL OF FLUID MECHANICS, 1984, 147 (OCT) :133-148

[3] RIGOROUS NEW LIMITS ON MAGNETIC HELICITY DISSIPATION IN THE SOLAR CORONA [J].

BERGER, MA .

GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS, 1984, 30 (1-2) :79-104

[4]

Birn J., 1981, SOLAR FLARE MAGNETOH, P337

[5]

Butt E. P., 1976, Plasma Physics, P419

[6] PLASMAS IN THE EARTHS MAGNETOTAIL [J].

FRANK, LA .

SPACE SCIENCE REVIEWS, 1985, 42 (1-2) :211-240

[7] MAGNETIC-FLUX CONVERSION AND RELAXATION TOWARD A MINIMUM-ENERGY STATE IN SPHEROMAK PLASMAS [J].

JANOS, A .

PHYSICS OF FLUIDS, 1986, 29 (10) :3342-3355

[8] GLOBAL MAGNETIC FLUCTUATIONS IN SPHEROMAK PLASMAS AND RELAXATION TOWARD A MINIMUM-ENERGY STATE [J].

JANOS, A ;

HART, GW ;

NAM, CH ;

YAMADA, M .

PHYSICS OF FLUIDS, 1985, 28 (12) :3667-3675

[9]

Kadomtsev B. B., 1987, Comments on Plasma Physics and Controlled Fusion, V11, P153

[10]

KONIGL A, 1985, ASTROPHYS J, V289, P173, DOI 10.1086/162876

← 1 2 3 4 →