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Experimental studies and simple numerical modeling of underwater electric discharges

journal contribution
posted on 23.05.2022, 11:06 by Thanasi FrostThanasi Frost, Bucur NovacBucur Novac, Peter SeniorPeter Senior, Laurent Pecastaing, Thierry Reess
At present, underwater electric pulsed discharges are used in a wide range of modern applications. During the development of a system for generating underwater acoustic pressure pulses, a numerical model is an essential tool for guiding the design and interpreting the data. Developing a complex one-dimensional numerical code, like those presented in the literature, requires a substantial dedicated effort. Unfortunately, previous work trying to use simple and elegant theoretical models developed many decades ago reported a fundamental issue, apparently related to the input data. The present work performs a detailed analysis of the real meaning of the voltage measured across an underwater discharge and clarifies the correct way the power input to a simple two-phase model should be calculated. Based on accurate measurements, a phenomenological methodology to obtain the input data is demonstrated, with theoretical predictions obtained from the simple two-phase model being successfully compared with the experimental evidence obtained from both the present work as well as from other reliable data presented in the literature.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

The Journal of the Acoustical Society of America

Volume

151

Issue

5

Pages

2844 - 2855

Publisher

Acoustical Society of America

Version

VoR (Version of Record)

Rights holder

© Acoustical Society of America

Publisher statement

Copyright (2022) Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Thanasi Frost, Bucur M. Novac, Peter Senior, Laurent Pecastaing, and Thierry Reess , "Experimental studies and simple numerical modeling of underwater electric discharges", The Journal of the Acoustical Society of America 151, 2844-2855 (2022) and may be found at https://doi.org/10.1121/10.0010288.

Acceptance date

05/04/2022

Publication date

2022-04-27

Copyright date

2022

ISSN

0001-4966

eISSN

1520-8524

Language

en

Depositor

Prof Bucur Novac. Deposit date: 22 May 2022

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