Impulsive discharges in water : acoustic and hydrodynamic parameters

Sun, Ying and Timoshkin, Igor V. and Given, Martin J. and Wilson, Mark P. and Wang, Tao and MacGregor, Scott J. and Bonifaci, Nelly (2016) Impulsive discharges in water : acoustic and hydrodynamic parameters. IEEE Transactions on Plasma Science, 44 (10). pp. 2156-2166. ISSN 0093-3813 (https://doi.org/10.1109/TPS.2016.2583066)

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Abstract

Underwater spark discharges are used in multiple practical applications including plasma closing switches, water treatment, plasma channel drilling and mineral processing, waste recycling, treatment of metals and medical lithotripsy. Spark discharges in water have been studied for several decades, however, despite significant research efforts and progress in this area, further investigation into the efficiency of plasma-acoustic sources and their optimisation is required in order to expand their practical applications. This paper is aimed at investigation of the electrical and hydrodynamic parameters of underwater plasma-generated cavities, including plasma resistance, energy delivered into the plasma cavity, period of cavity oscillations and characteristics of pressure impulses. Different energy levels, breakdown voltages and gap distances were used in the present study to allow systematic analysis of these electrical and hydrodynamic parameters. Empirical scaling laws which link the maximum acoustic pressure and the period of cavity oscillations with the energisation parameters and the resistance of plasma have been obtained. These empirical functions can be used for optimisation of the plasma-acoustic sources and for tailoring their parameters for specific practical applications

  • Item type:Article
    ID code:56949
    Dates:
    Date
    Event
    31 October 2016
    Published
    7 July 2016
    Published Online
    16 June 2016
    Accepted
    Notes:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:12 Jul 2016 13:55
    Last modified:08 Apr 2024 22:42
    URI:https://strathprints.strath.ac.uk/id/eprint/56949
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