2022year11month，Associate Researcher Team of the School of Electrical Engineering has made new progress in the study of air bubble guidance discharge in the water，Research results with "The Guiding Effect of Artificially Inject Gas Bubble on the Underwater Pulled Spark Discharge and ITS Electio Parameters breakdown"as the topic, publishedInternational authoritative journal "Physics of Plasmas"above. The first author of the paper isMaster's degreeGraduateGuo Xu, the author of the communication isAssociate Researcher Sun，ShandongUniversity is the only communication unit.The paper is recommended as a magazine cover article and selectedAIP PUBLISHING SCILIGHTRecommended articles.
When using a pair of electrodes to apply appropriate pulse voltage to the electrical water water，charge will increase due to ionization，Forms a discharge channel between the electrodes and break through。This creates a plasma channel that looks like a spark，Therefore, it is called the underwater pulse spark discharge。This process transports a large amount of electric energy to water，Causes dense heating and various physical and chemical reactions，If it emits sound waves and light。This technology m88 com live casino registeris widely used in environmental purification、Wastewater treatment、biomedical application and other processes。
But，The randomness of discharge transmission will lead to a large amount of energy loss before the breakdown。Teacher Sun Yan's team explored how to inject a bubble between the electrodes to guide discharge and reduce energy loss。Research found that the bubbles enhance the strength of the electric field near its nearby。This will guide the distribution path in the process of discharge from the development of high voltage electrodes to the development of ground electrodes。The research team surveyed different combinations of electrode spacing and voltage，Is there any bubble，bubbles at different positions，Analyze the discharge process through a high -speed camera，The effect of the breakdown voltage m88 live casino gamesand the electrode spacing on sound waves。Preliminary studies based on electrodynamics clearly proved the effect of bubbles on the spread path。other，Use the measurement of the underwater acceleration meter and the analysis of the discharge electrical parameters，The relationship between the energy density of the plasma channel and the impact wave amplitude，It is found that the increase of the impact volatility value gradually saturates as the energy density increases; it is found that the patellet channel resistance increases with the increase of the electrode gap，Decreased as the breakdown voltage increases，Summary of the experience formula of the patert channel resistance in the water。The above results are air bubble pulses and electricity as a strong sound source underwater.m88 com live casino register、Promotion and application in the fields of biomedical engineering provides strong experimental data support。Related research results obtained the funding of the National Natural Science Foundation of China。
Thesis link:
https://aip.scitation.org/doi/10.1063/5.0122080
