Temperature of the Restrike Channels of Exploding Wires
Temperature of the Restrike Channels of Exploding Wires
复制标题
爆炸电线重击通道的温度
DOI：
10.1063/1.1658548
复制
发表时间：
1970
影响因子：
3.2
通讯作者：
A. Vlastós
中科院分区：
文献类型：
--
作者：
S. Lundquist;A. Vlastós
在通道内电流分布均匀的情况下，通过同时测量通道内的电流、通道上的电压降和通道半径，研究了细丝爆炸通道的温度、电子密度和热导率的时间行为。在这项研究中，通道等离子体被假定为完全电离和单电离，完全电离等离子体的电导率和热导率的Spitzer方程和修正的重击通道的Pinch关系被使用。结果表明：(A)电导率在电导极大值之前达到极大值；(B)温度和热导率在电导极大值处达到极大值；(C)电子密度在电导极大值之后和附近达到极大值；(C)电子密度在电导极大值之后和附近达到极大值。
The temporal behavior of the temperature, the electron density and the thermal conductivity of the restrike channel of a thin exploding wire were studied, using the electrical conductivity of the restrike channel, which was determined by simultaneous measurements of the current through the channel, the voltage drop cross the channel and the channel radius assuming that the current distribution within the channel was homogeneous. In this study, in which the channel plasma was assumed to be fully and singly ionized, the Spitzer equations for the electrical and thermal conductivity of a fully ionized plasma and a modified pinch relation for the restrike channel were used. The results show:(a) that the electrical conductivity reaches its maximum before the current maximum on the ledge observed on the voltage oscillograms;(b) that the temperature and thermal conductivity reach their maxima at the conductivity maximum;(c) that the electron density reaches its maximum after the conductivity maximum and near the ...