基于移动粒子半隐式方法的低压电弧中金属蒸气动力学数值模型的建立及屏蔽壁半径对蒸气行为的影响

IF 0.4 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Engineering in Japan Pub Date : 2022-02-21 DOI:10.1002/eej.23374

T. Miyazaki, Yuto Hatanaka, Yasunori Tanaka, Y. Nakano, T. Ishijima, Gaku Asanuma, T. Onchi

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引用次数: 0

摘要

利用所建立的模型对低压条件下弧内铜蒸气的动态行为进行了数值模拟。该模型对原子和离子采用MPS法，对电子能量和电磁场采用有限体积法。本文研究了蒸汽动力学中屏蔽壁内半径对重粒子温度、电子温度和电离度的影响。在MPS方法中，假设粒子被中和并在屏蔽壁上镜像反射。因此，屏蔽壁半径越大，金属蒸气密度越低，电极间的电离程度越低。

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Development of a numerical model for metal vapor dynamics in low pressure arcs based on moving particle semi‐implicit method and influence of shield wall radius on vapor behavior

Numerical simulation was conducted for dynamic behavior of copper vapor in arcs under reduced pressure condition using the developed model. The developed model uses MPS method for atoms and ions, while it uses finite volume method for electron energy and electro‐magnetic fields. In this paper, the influence of shield wall inner radius for vapor dynamics was studied on the heavy particle temperature, electron temperature and ionization degree. The particle in MPS method was assumed to be neutralized and mirror‐reflected on the shield wall. As a result, the shield wall with a larger radius causes lower density of metal vapor, lower ionization degree between the electrodes.

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来源期刊

Electrical Engineering in Japan 工程技术-工程：电子与电气

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Electrical Engineering in Japan (EEJ) is an official journal of the Institute of Electrical Engineers of Japan (IEEJ). This authoritative journal is a translation of the Transactions of the Institute of Electrical Engineers of Japan. It publishes 16 issues a year on original research findings in Electrical Engineering with special focus on the science, technology and applications of electric power, such as power generation, transmission and conversion, electric railways (including magnetic levitation devices), motors, switching, power economics.