Discharge and post-explosion behaviors of electrical explosion of conductors from a single wire to planar wire array

Chen LI; Ruoyu HAN; Yi LIU; Jinlin ZHAO; Yanan WANG; Feng HE; Jiting OUYANG

doi:10.1088/2058-6272/ac3972

Plasma Science and Technology > 2022 > 24(1): 015507. > DOI: 10.1088/2058-6272/ac3972

Chen LI, Ruoyu HAN, Yi LIU, Jinlin ZHAO, Yanan WANG, Feng HE, Jiting OUYANG. Discharge and post-explosion behaviors of electrical explosion of conductors from a single wire to planar wire array[J]. Plasma Science and Technology, 2022, 24(1): 015507. DOI: 10.1088/2058-6272/ac3972

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Discharge and post-explosion behaviors of electrical explosion of conductors from a single wire to planar wire array

1.
Research Center for Electrostatics and Applications, Beijing Institute of Technology, Beijing 100081, People's Republic of China
2.
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
3.
State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China

More Information

Corresponding author:
Ruoyu HAN, E-mail: han.ruoyu@hotmail.com
Received Date: August 31, 2021
Revised Date: November 11, 2021
Accepted Date: November 12, 2021
Available Online: March 18, 2024
Published Date: December 14, 2021

Graphical Abstract

Abstract

Abstract

This work deals with an experimental study of a Cu planar wire array (PWA) in air and water under the stored energy 300–1200 J. A single Cu wire is adopted as a controlled trial. Four configurations of PWA and a wire with the same mass (cross-section area) but the different specific surface areas (15–223 cm² g^-1) are exploded. The transient process is analyzed using high-speed photography in combination with the results of optical emission and discharge. Discharge characteristics revealed that PWA always has a higher electric power peak, early but higher voltage peak, as well as faster vaporization and ionization process than the single-wire case. Two to three times stronger optical emission could be obtained when replacing the single-wire with PWA, indicating a higher energy-density state is reached. Phenomenologically, in both air and water, single-wire load tends to develop a transverse stratified structure, while PWA is dominated by the uneven energy deposition among wires. Finally, the synchronism and uniformity of the PWA explosion are discussed.
- electrical explosion,
- wire array,
- metal plasma,
- plasma radiation,
- shock wave

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Acknowledgments

This work was supported in part by National Natural Science Foundation of China (No. 51907007), Natural Science Foundation of Beijing (No. 3212034), State Key Laboratory of Electrical Insulation and Power Equipment (No. EIPE20204), and State Key Laboratory of Advanced Electromagnetic Engineering and Technology (No. AEET 2019KF006).

Data availability statement

The data that support the findings of this study are available from the corresponding author uponreasonable request.

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