Impact of the Hall Effect on High-Energy-Density Plasma Jets

被引：32

作者：

Gourdain, P. -A. ^{[1
]}

Seyler, C. E. ^{[1
]}

机构：

[1] Cornell Univ, Plasma Studies Lab, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 01期

基金：

美国国家科学基金会;

关键词：

Plasma jets - Reynolds number;

D O I：

10.1103/PhysRevLett.110.015002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a 1-MA, 100 ns-rise-time pulsed power generator, radial foil configurations can produce strongly collimated plasma jets. The resulting jets have electron densities on the order of 10(20) cm(-3), temperatures above 50 eV and plasma velocities on the order of 100 km/s, giving Reynolds numbers of the order of 10(3), magnetic Reynolds and Peclet numbers on the order of 1. While Hall physics does not dominate jet dynamics due to the large particle density and flow inside, it strongly impacts flows in the jet periphery where plasma density is low. As a result, Hall physics affects indirectly the geometrical shape of the jet and its density profile. The comparison between experiments and numerical simulations demonstrates that the Hall term enhances the jet density when the plasma current flows away from the jet compared to the case where the plasma current flows towards it. DOI: 10.1103/PhysRevLett.110.015002

引用

页数：5

共 14 条

[1] Magnetohydrodynamic instabilities in radial foil configurations [J].

Gourdain, P. -A. ;

Greenly, J. B. ;

Hammer, D. A. ;

Kusse, B. R. ;

Pikuz, S. A. ;

Seyler, C. E. ;

Shelkovenko, T. C. ;

Knapp, P. F. .

PHYSICS OF PLASMAS, 2012, 19 (02)

[2] Initial experiments using radial foils on the Cornell Beam Research Accelerator pulsed power generator [J].

Gourdain, P. -A. ;

Blesener, I. C. ;

Greenly, J. B. ;

Hammer, D. A. ;

Knapp, P. F. ;

Kusse, B. R. ;

Schrafel, P. C. .

PHYSICS OF PLASMAS, 2010, 17 (01)

[3] The Impact of Cathode Diameter on Radial Foil Explosions [J].

Gourdain, P-A ;

Greenly, J. B. ;

Hammer, D. A. ;

Knapp, P. F. ;

Kusse, B. R. ;

Pikuz, S. A. ;

Schrafel, P. C. ;

Shelkovenko, T. C. .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2010, 38 (12) :3363-3369

[4] High energy density plasmas generated by radial foil explosions [J].

Gourdain, P-A ;

Blesener, I. C. ;

Greenly, J. B. ;

Hammer, D. A. ;

Knapp, P. F. ;

Kusse, B. R. ;

Pikuz, S. A. ;

Shelkovenko, T. C. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2010, 52 (05)

[5] Digital evaluation of interferograms [J].

Hipp, M ;

Woisetschläger, J ;

Reiterer, P ;

Neger, T .

MEASUREMENT, 2004, 36 (01) :53-66

[6]

Hutchinson I., 2005, PRINCIPLES PLASMA DI, P129

[7] On the interpretation of the apparent existence of a preferred magnetic polarity in extragalactic jet sources [J].

Koenigl, Arieh .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 407 (01) :L79-L83

[8] A new Abel inversion by means of the integrals of an input function with noise [J].

Li, Xian-Fang ;

Huang, Li ;

Huang, Yong .

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2007, 40 (02) :347-360

[9] TRANSITION TO WHISTLER MEDIATED MAGNETIC RECONNECTION [J].

MANDT, ME ;

DENTON, RE ;

DRAKE, JF .

GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (01) :73-76

[10] Criteria for scaled laboratory simulations of astrophysical MHD phenomena [J].

Ryutov, DD ;

Drake, RP ;

Remington, BA .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 127 (02) :465-468

← 1 2 →