ENERGY-MASS COUPLING IN HIGH-PRESSURE LIQUID-INJECTED ARCS

被引：18

作者：

BURTON, RL ^{[1
]}

HILKO, BK ^{[1
]}

WITHERSPOON, FD ^{[1
]}

JAAFARI, G ^{[1
]}

机构：

[1] GT DEVICES INC, ALEXANDRIA, VA 22312 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1991年 / 19卷 / 02期

关键词：

D O I：

10.1109/27.106832

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：

Highly collisional, low-temperature plasmas are created by discharging a 25-mu-sec, 40-160 J current pulse through a quartz capillary tube of a few millimeters diameter, into which liquid water is injected. Discharge electrical resistance is measured as a function of current, capillary diameter, axial position, and radial distribution of the liquid. Time-resolved spectra show strong line emission at early times and continuum emission later in the pulse, indicating a transition from a 3-4 eV optically thin plasma to a 1-2 eV plasma that is optically thick. The spectra are used to measure mean electron density and plasma temperature at early times. A one-dimensional, unsteady numerical model of plasma properties and total electrical resistance is presented which gives good agreement with experimental resistance measurements.

引用

页码：340 / 349

页数：10

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