Publication: INFLUENCE OF CORONA AND STREAMER DISCHARGES ON THE BEHAVIOR OF LARGE AIR BUBBLES ARTIFICIALLY FORMED ON/IN A LIQUID
Аннотация
The paper presents information about the behavior of large air bubbles artificially formed on/in water and oil and influenced by corona and streamer discharges. The large bubbles are not breakdown promoters like microbubbles, which are considered to be dangerous inclusions in a dielectric liquid from an electrical engineering point of view. The large bubbles themselves are the objects influenced by the discharge, leading to abundant enrichment of the liquid by biochemically reactive plasma species. This is why studying the discharge-bubble interaction has great importance. The large bubbles were formed on water and oil inside a narrow dielectric tube filled with water. The behavior of floating bubbles under the influence of the discharge depends on the liquid forming the bubbles. In the case of the water and streamer generated above a bubble, the streamer striking the bubble does not immediately perforate it but slides along the bubble down to its base. The streamer is hot. Therefore, over time it evaporates the bubble wall and triggers the destruction of the bubble. If an air bubble floats on oil, the streamer impact leads immediately to local bubble perforation followed by its fast destruction as it bursts. The air bubbles inserted into a dielectric tube were influenced by the streamer discharge developing inside the bubbles. Two regimes of bubble behavior were observed. The first regime exhibits itself as the bubble's length changes over a long period of time. The second regime manifests itself over a short period of time as fast streamer breakdown develops along the chain of bubbles.
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Цитирование
Akishev, Y. INFLUENCE OF CORONA AND STREAMER DISCHARGES ON THE BEHAVIOR OF LARGE AIR BUBBLES ARTIFICIALLY FORMED ON/IN A LIQUID / Akishev, Y // INTERFACIAL PHENOMENA AND HEAT TRANSFER. - 2021. - 9. - № 2. - P. 51-71. - 10.1615/InterfacPhenomHeatTransfer.2021038024