Impulsive breakdown in water: optimisation of energy delivery for high acoustic output

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The high voltage impulsive breakdown process in water is complex, with the nature of the impulsive breakdown depending upon the magnitude, polarity and rise time of the HV impulses, the water conductivity, and the electrode topology. In the case of μs and sub-μs high voltage impulses of sufficient magnitude, the breakdown develops through the formation of plasma streamers in the water. When the first streamer crosses the entire inter-electrode gap, the energy released in the breakdown channel transforms this channel into a gas/vapor cavity, which pulsates and radiates acoustic impulse(s). Optimisation of the hydrodynamic (period of cavity oscillation) and acoustic (peak magnitude of the acoustic impulse(s)) parameters is required for practical applications of these underwater spark discharges. The present paper analyses the functional behavior of the period of cavity oscillation and the peak magnitude of the acoustic impulse for spark discharges generated by self-triggered underwater discharges (free discharges), spark discharges triggered by air bubbles injected into the inter-electrode gap, and wire-guided discharges. The advantages and limitations of these methods of generation of underwater acoustic impulses by spark discharges are discussed.
LanguageEnglish
Title of host publication2017 IEEE 19th International Conference on Dielectric Liquids (ICDL)
Place of PublicationPiscataway, N.J.
PublisherIEEE
Number of pages4
ISBN (Print)978-1-5090-4878-6
DOIs
Publication statusPublished - 1 Dec 2017
EventIEEE International Conference on Liquid Dielectrics (2017) - University of Manchester, Manchester, United Kingdom
Duration: 25 Jun 201729 Jun 2017
http://www.icdl2017.com/

Conference

ConferenceIEEE International Conference on Liquid Dielectrics (2017)
Abbreviated titleICDL 2017
CountryUnited Kingdom
CityManchester
Period25/06/1729/06/17
Internet address

Fingerprint

Electric sparks
Acoustics
Discharge (fluid mechanics)
Electrodes
Water
Underwater acoustics
Electric potential
Bubbles (in fluids)
Hydrodynamics
Vapors
Topology
Wire
Plasmas
Air
Gases

Keywords

  • breakdown in water
  • air bubble acoustic efficiency
  • wire-guided discharge

Cite this

Timoshkin, I. V., Sun, Y., Given, M. J., Wilson, M. P., MacGregor, S. J., & Bonifaci, N. (2017). Impulsive breakdown in water: optimisation of energy delivery for high acoustic output. In 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL) Piscataway, N.J.: IEEE. https://doi.org/10.1109/ICDL.2017.8124700
Timoshkin, I. V. ; Sun, Y. ; Given, M.J. ; Wilson, M. P. ; MacGregor, S. J. ; Bonifaci, N. / Impulsive breakdown in water : optimisation of energy delivery for high acoustic output. 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL). Piscataway, N.J. : IEEE, 2017.
@inproceedings{a0b131e214c447dca1d8d0db54fa4a10,
title = "Impulsive breakdown in water: optimisation of energy delivery for high acoustic output",
abstract = "The high voltage impulsive breakdown process in water is complex, with the nature of the impulsive breakdown depending upon the magnitude, polarity and rise time of the HV impulses, the water conductivity, and the electrode topology. In the case of μs and sub-μs high voltage impulses of sufficient magnitude, the breakdown develops through the formation of plasma streamers in the water. When the first streamer crosses the entire inter-electrode gap, the energy released in the breakdown channel transforms this channel into a gas/vapor cavity, which pulsates and radiates acoustic impulse(s). Optimisation of the hydrodynamic (period of cavity oscillation) and acoustic (peak magnitude of the acoustic impulse(s)) parameters is required for practical applications of these underwater spark discharges. The present paper analyses the functional behavior of the period of cavity oscillation and the peak magnitude of the acoustic impulse for spark discharges generated by self-triggered underwater discharges (free discharges), spark discharges triggered by air bubbles injected into the inter-electrode gap, and wire-guided discharges. The advantages and limitations of these methods of generation of underwater acoustic impulses by spark discharges are discussed.",
keywords = "breakdown in water, air bubble acoustic efficiency, wire-guided discharge",
author = "Timoshkin, {I. V.} and Y. Sun and M.J. Given and Wilson, {M. P.} and MacGregor, {S. J.} and N. Bonifaci",
note = "{\circledC} 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.",
year = "2017",
month = "12",
day = "1",
doi = "10.1109/ICDL.2017.8124700",
language = "English",
isbn = "978-1-5090-4878-6",
booktitle = "2017 IEEE 19th International Conference on Dielectric Liquids (ICDL)",
publisher = "IEEE",

}

Timoshkin, IV, Sun, Y, Given, MJ, Wilson, MP, MacGregor, SJ & Bonifaci, N 2017, Impulsive breakdown in water: optimisation of energy delivery for high acoustic output. in 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL). IEEE, Piscataway, N.J., IEEE International Conference on Liquid Dielectrics (2017), Manchester, United Kingdom, 25/06/17. https://doi.org/10.1109/ICDL.2017.8124700

Impulsive breakdown in water : optimisation of energy delivery for high acoustic output. / Timoshkin, I. V.; Sun, Y.; Given, M.J.; Wilson, M. P.; MacGregor, S. J.; Bonifaci, N.

2017 IEEE 19th International Conference on Dielectric Liquids (ICDL). Piscataway, N.J. : IEEE, 2017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Impulsive breakdown in water

T2 - optimisation of energy delivery for high acoustic output

AU - Timoshkin, I. V.

AU - Sun, Y.

AU - Given, M.J.

AU - Wilson, M. P.

AU - MacGregor, S. J.

AU - Bonifaci, N.

N1 - © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - The high voltage impulsive breakdown process in water is complex, with the nature of the impulsive breakdown depending upon the magnitude, polarity and rise time of the HV impulses, the water conductivity, and the electrode topology. In the case of μs and sub-μs high voltage impulses of sufficient magnitude, the breakdown develops through the formation of plasma streamers in the water. When the first streamer crosses the entire inter-electrode gap, the energy released in the breakdown channel transforms this channel into a gas/vapor cavity, which pulsates and radiates acoustic impulse(s). Optimisation of the hydrodynamic (period of cavity oscillation) and acoustic (peak magnitude of the acoustic impulse(s)) parameters is required for practical applications of these underwater spark discharges. The present paper analyses the functional behavior of the period of cavity oscillation and the peak magnitude of the acoustic impulse for spark discharges generated by self-triggered underwater discharges (free discharges), spark discharges triggered by air bubbles injected into the inter-electrode gap, and wire-guided discharges. The advantages and limitations of these methods of generation of underwater acoustic impulses by spark discharges are discussed.

AB - The high voltage impulsive breakdown process in water is complex, with the nature of the impulsive breakdown depending upon the magnitude, polarity and rise time of the HV impulses, the water conductivity, and the electrode topology. In the case of μs and sub-μs high voltage impulses of sufficient magnitude, the breakdown develops through the formation of plasma streamers in the water. When the first streamer crosses the entire inter-electrode gap, the energy released in the breakdown channel transforms this channel into a gas/vapor cavity, which pulsates and radiates acoustic impulse(s). Optimisation of the hydrodynamic (period of cavity oscillation) and acoustic (peak magnitude of the acoustic impulse(s)) parameters is required for practical applications of these underwater spark discharges. The present paper analyses the functional behavior of the period of cavity oscillation and the peak magnitude of the acoustic impulse for spark discharges generated by self-triggered underwater discharges (free discharges), spark discharges triggered by air bubbles injected into the inter-electrode gap, and wire-guided discharges. The advantages and limitations of these methods of generation of underwater acoustic impulses by spark discharges are discussed.

KW - breakdown in water

KW - air bubble acoustic efficiency

KW - wire-guided discharge

U2 - 10.1109/ICDL.2017.8124700

DO - 10.1109/ICDL.2017.8124700

M3 - Conference contribution book

SN - 978-1-5090-4878-6

BT - 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL)

PB - IEEE

CY - Piscataway, N.J.

ER -

Timoshkin IV, Sun Y, Given MJ, Wilson MP, MacGregor SJ, Bonifaci N. Impulsive breakdown in water: optimisation of energy delivery for high acoustic output. In 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL). Piscataway, N.J.: IEEE. 2017 https://doi.org/10.1109/ICDL.2017.8124700