電気学会 共通英文誌 IEEJ Transactions on Electrical and Electronic Engineering (TEEE) に投稿していた任先輩（博士２年）の論文が、掲載されました！（Vol. 17, No. 6）
Analyzing Cathode and Anode Spot Movements of Atmospheric Arc Plasma in Parallel Electrodes Using Thermal Field Theory and Thermal Non-equilibrium Model
Zhenwei Ren, Yusuke Nemoto, Yoshifumi Maeda, Shinji Yamamoto, Gaku Asanuma, Toshiyuki Onchi, Toru Iwao
It is necessary to elucidate the mechanism of atmospheric arc plasma movement and the variation in its physical properties for constructing an accurate virtual model while using digital twin technology to design a next-generation direct current circuit breaker. In this study, the calculation setting for considering the thermal nonequilibrium effect on an electrode surface was established. Moreover, the thermal field theory was employed for simulating the cathode spot movement and a thermal nonequilibrium model was implemented for analyzing the triggering factor of the re-strike phenomenon occurrence on the anode surface. It was found that heavy particles (ions and neutral particles) were transported forward by the cathode jet and not only caused an increment in the electrical conductivity on the anode surface, but also increased the electric field between the arc column and the anode surface. © 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.