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. Issue 1 (21st February 2022)

• Record Type: Journal Article
• Authors: Miyazaki, Takamitsu; Hatanaka, Yuto; Tanaka, Yasunori; Nakano, Yusuke; Ishijima, Tatsuo; Asanuma, Gaku; Onchi, Toshiyuki
• Is Part Of: Electrical engineering in Japan. Volume 215:Issue 1(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-02-21
• Subjects: arcs at reduced pressure -- copper vapor -- metal shield wall -- MPS method; Electrical engineering -- Periodicals; 621.30952
• DOI: 10.1002/eej.23374
• Languages: English
• ISSNs: 0424-7760

Abstract

Abstract: 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.