Characteristics of exploding metal wires in water with three discharge types

被引：49

作者：

Han, Ruoyu ^{[1
]}

Wu, Jiawei ^{[1
]}

Zhou, Haibin ^{[1
]}

Ding, Weidong ^{[1
]}

Qiu, Aici ^{[1
]}

Clayson, Thomas ^{[2
]}

Wang, Yanan ^{[1
]}

Ren, Hang ^{[1
,3
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

[2] Imperial Coll, Blackett Lab, London SW7 2AZ, England

[3] UCL, Sch Management, London E14 5AB, England

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 122卷 / 03期

关键词：

EXPLOSION; PLASMA;

D O I：

10.1063/1.4994009

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper presents the characteristics of underwater electrical wire explosion (UEWE) with three discharge types, namely, Type-A, Type-B, and Type-C. Experiments were carried out with copper and tungsten wires (4 cm long and 50-300 mu m in diameter) driven by a microsecond time-scale pulsed current source with 500 J stored energy. A time-integrated spectrometer and a photodiode were used to measure the optical emission of UEWE. A Polyvinylidene Fluoride probe was adopted to record the pressure waveforms. Experimental results indicate that from Type-A to Type-C, more energy deposits prior to the voltage peak and the first peak power increases drastically. This variation of energy deposition influences the optical emission and shock wave generation process. Specifically, the light intensity decreases by more than 90% and the peak of continuous spectra moves from similar to 400 nm to similar to 700 nm. In addition, the peak pressure of the first shock wave increases from similar to 2MPa to more than 7.5 MPa. Published by AIP Publishing.

引用

页数：13

共 38 条

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