Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

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

[img]
Preview
Text (Sun-etal-IEEE-TPS-2015-Impulsive-discharges-in-water-acoustic-and-hydrodynamic)
Sun_etal_IEEE_TPS_2015_Impulsive_discharges_in_water_acoustic_and_hydrodynamic.pdf - Accepted Author Manuscript

Download (886kB) | Preview

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