Frost Thanasi, Novac Bucur M, Senior Peter, Pecastaing Laurent, Reess Thierry
Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom.
Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au Génie Electrique-Fédération Institut Pluridisciplinaire de Recherche Appliquée, Université de Pau et des Pays de l'Adour/E2S UPPA, 64000 Pau, France.
J Acoust Soc Am. 2022 May;151(5):2844. doi: 10.1121/10.0010288.
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.
目前，水下电脉冲放电在广泛的现代应用中得到了使用。在开发用于产生水下声压脉冲的系统过程中，数值模型是指导设计和解释数据的重要工具。开发一个复杂的一维数值代码，就像文献中所呈现的那些，需要大量的专门努力。不幸的是，先前尝试使用几十年前开发的简单而优雅的理论模型的工作报告了一个基本问题，显然与输入数据有关。本工作对水下放电两端测量的电压的实际意义进行了详细分析，并阐明了计算输入到简单两相模型的功率的正确方法。基于精确测量，展示了一种获取输入数据的唯象方法，从简单两相模型获得的理论预测与本工作以及文献中呈现的其他可靠数据所获得的实验证据成功进行了比较。
