带刚性壁的圆柱形排放室容积对填充水中压力场的影响

V. M. Kosenkov
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摘要

摘要排料室的容积对充入排料室的水的压力场和许多工艺过程的效率有很大的影响;因此,研究腔体容积与腔内压力的关系是一项紧迫的任务。然而,目前对放电腔体积在放电腔内压力场形成中的作用研究还不够充分。这项工作的目的是填补这一空白。本研究是在先前建立的水中放电数学模型的基础上进行的,通过模拟结果与实验数据的比较证实了该数学模型的充分性。确定了刚性壁面放电室的封闭体积对充水压力场的形成有显著影响。在这种情况下,从放电室壁面反射的波与水中放电通道表面和汽-气腔的相互作用具有决定性的重要性。反射波决定放电通道和汽-气腔脉动的周期和幅度,从而影响放电的电特性。这种影响随着燃烧室体积的减小而增大。
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Influence of the Volume of a Cylindrical Discharge Chamber with Rigid Walls on the Pressure Field in the Water Filling It

Abstract

The volume of the discharge chamber has a great influence on the pressure field in the water filling it and on the efficiency of many technological processes; therefore, the study of the relationship between the volume of the chamber and the pressure in it is an urgent task. However, at present, the role of the volume of the discharge chamber in the formation of the pressure field in it has been insufficiently studied. The purpose of this work is to fill the gap. The study was carried out on the basis of a previously developed mathematical model of an electric discharge in water, the adequacy of which was substantiated via a comparison of the simulation results with experimental data. It is determined that the closed volume of the discharge chamber with rigid walls significantly affects the formation of the pressure field in the water filling it. In this case, the interaction of waves reflected from the walls of the discharge chamber with the surface of the discharge channel in water and the vapor-gas cavity is of decisive importance. The reflected waves determine the period and amplitude of the pulsation of the discharge channel and the vapor-gas cavity, thereby influencing the electrical characteristics of the discharge. This influence increases with decreasing the chamber volume.

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来源期刊
Surface Engineering and Applied Electrochemistry
Surface Engineering and Applied Electrochemistry Engineering-Industrial and Manufacturing Engineering
CiteScore
1.60
自引率
22.20%
发文量
54
期刊介绍: Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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