Deformation of a Dielectric Drop in Water under Microsecond Current Pulses

IF 0.4 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
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引用次数: 0

Abstract

Particle Image Velocimetry (PIV) is used to study the nonstationary flow pattern around a drop of a dielectric liquid of dibutyl phthalate surrounding water of weak conductivity under the action of a microsecond current pulse. It has been found that the time of existence of the induced vortex flow in water significantly exceeds the duration of the current pulse. During the action of the pulse, only small perturbations develop on the surface of the drop, while the final perturbations of the surface develop at much longer times, exceeding the duration of the current pulse by two or more orders of magnitude, and are associated with the evolution of the water flow around the drop. It is shown that the value of the maximum velocity in the induced water flow is affected by the potential of the needle at a constant duration and amplitude of the current.

微秒级电流脉冲下水中介质滴的变形
摘要 粒子图像测速仪(PIV)用于研究在微秒级电流脉冲作用下,弱电导率水周围邻苯二甲酸二丁酯介电液体液滴的非稳态流动模式。研究发现,水中诱导涡流的存在时间大大超过了电流脉冲的持续时间。在脉冲作用期间,水滴表面只发生微小的扰动,而表面的最终扰动发生的时间要长得多,超过电流脉冲持续时间两个数量级或更多,并且与水滴周围水流的演变有关。研究表明,在电流持续时间和振幅不变的情况下,诱导水流的最大速度值受针的电位影响。
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来源期刊
CiteScore
1.00
自引率
20.00%
发文量
170
审稿时长
10.5 months
期刊介绍: Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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