Experimental investigation of arc formation and bubble expansion initiated by pulse discharge in water

Liu, Yi; Lin, Fuchang; Li, Zhiyuan; Luo, Qiping

doi:10.1109/ppc.2015.7296930

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…One of the main limitations of the extensive use of technologies based on shock waves is the low efficiency of transformation of the electrical energy in the capacitive storage of the supply generator into the mechanical energy of an acoustic wave, which in many cases does not exceed a few percent [11]. The acoustic efficiency can be significantly improved by using the electrical explosion of metal wires to initiate a discharge in water.…”

Section: Introductionmentioning

confidence: 99%

Pulsed high-current discharge in water: adiabatic model of expanding plasma channel and acoustic wave

Kozyrev¹,

Zherlitsyn²,

Semeniuk³

2022

Plasma Sci. Technol.

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This paper presents the results of a theoretical and experimental study of the use of a pulsed discharge in water to obtain a strong acoustic wave in a liquid medium. A discharge with a current amplitude of 10 kA, a duration of 400 ns, and an amplitude pulsed power of 280 MW in water at atmospheric pressure created an expanding acoustic wave with an amplitude of more than 100 MPa. To describe the formation of the discharge channel, an isothermal plasma model has been developed, which made it possible to calculate both the expansion dynamics of a high-current channel and the strong acoustic wave generated by it. Our calculations show that the number density of plasma in the channel reaches 10^20 cm^(–3), while the degree of water vapour ionization is about 10%, and the channel wall extends with a velocity of 500 m/s. The calculations for the acoustic wave are in good agreement with measurements

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Section: Introductionmentioning

confidence: 99%