Strong double-layer formation by shock waves in nonequilibrium plasmas

被引：17

作者：

Bletzinger, P ^{[1
]}

Ganguly, BN ^{[1
]}

Garscadden, A ^{[1
]}

机构：

[1] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.67.047401

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Strong double-layer formation by acoustic shock wave (<M = 2) propagation in a low-pressure, N-2 positive column plasma has been quantified, near the shock front, by measurements of the voltage jump and the enhancements of both the B (3)Pi(g)-A (3)Sigma(+)(u) plasma emission and the electron density. The large polarity dependence (or shock direction) of these effects and potential jumps of more than 20kT(e) across the shock-created interface indicate that the measured shock-induced electron heating effects (localized excitation and ionization rate) are caused by the formation of strong double layers maintained by the traveling shock front.

引用

页数：4

共 18 条

[1]

ALEXANDROV AF, 2000, J TECH PHYS, V41, P533

[2] An experimental and theoretical study of shock-wave propagation through reactive gases under conditions causing a transformation of the flow structure [J].