Numerical analysis of plasma and shock wave characteristics of the discharge in liquid

Yu Qing; Zhang Hui; Ma Danni

doi:10.11884/HPLPB202133.200321

Volume 33 Issue 7

Jul. 2021

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Article Navigation > High Power Laser and Particle Beams > 2021 > 33(7): 075001

Yu Qing, Zhang Hui, Ma Danni. Numerical analysis of plasma and shock wave characteristics of the discharge in liquid[J]. High Power Laser and Particle Beams, 2021, 33: 075001. doi: 10.11884/HPLPB202133.200321

Citation:

Yu Qing, Zhang Hui, Ma Danni. Numerical analysis of plasma and shock wave characteristics of the discharge in liquid[J]. High Power Laser and Particle Beams, 2021, 33: 075001. doi: 10.11884/HPLPB202133.200321

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Numerical analysis of plasma and shock wave characteristics of the discharge in liquid

doi: 10.11884/HPLPB202133.200321

College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China

Received Date: 2020-11-26
Rev Recd Date: 2021-05-07

Available Online: 2021-06-23

Publish Date: 2021-07-15

Abstract

Abstract

Based on conservation equation of energy, channel characteristics of the cylindrical geometry of the plasma were described under different conductivity models. The variation of the channel radius, temperature, resistance, current and dissipated energy with time is obtained. The variation of shock wave pressure at a certain distance from the center of the discharge gap is also given. The results are compared with those calculated based on the spherical geometry of the plasma channel. The purpose of this paper is to provide a reference for further study of physical and chemical characteristics and shock wave characteristics of the discharge in liquid. The results show that there is significant difference in the channel pressure and radius when the plasma channel is respectively regarded as a sphere and a cylinder, but there is little difference in other physical properties. When the physical characteristics except the shock wave characteristic are described by using three conductivity models, the change trend is almost the same, while the shock wave characteristic is described more accurately by using the conductivity model σ₂. By comparing the changes of electrical parameters and pressure parameters, the applicability of the model can be selected according to the experimental data or specific research problems, which also provides a reference for further study of the physicochemical characteristics and shock wave characteristics of discharge plasma in liquid.
- discharge in liquid,
- plasma channel,
- shock wave characteristics,
- conductivity,
- high voltage

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References(22)

References

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