Numerical Simulation of Short-Arc-Plasma Characteristics in DC Electrofusion Magnesium Furnaces
Qing Wang, Xuezhi Li, Hang Dong, Baozhen Yang, Pengfei Liu, Chuanhui Dai, Xiang Shen, Yuhang Ren · 2026
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Description
Qing Wang leads an eight-author team simulating the electric arc inside a magnesium smelting furnace. Electrofusion furnaces melt magnesite with a direct-current arc between a top electrode and the furnace bottom, and short arcs behave differently from the long arcs most models describe. The team built a two-dimensional magnetohydrodynamic model coupling electromagnetic, heat, and flow fields, validated against classic free-arc experiments.
The simulated arc squeezes into a tight column with its hottest, fastest region near the center. Because the short arc reaches the anode before its jet can spread, momentum lands concentrated on the pool surface, producing sharp pressure peaks. Raising current heated the arc, sped the jet, and strengthened pressure and shear on the pool. Lengthening the arc did the opposite, and arc length mattered more than current overall. The authors offer the results as guidance for furnace operation and energy use in magnesium production.
Catalog record
| CREATOR | Qing Wang, Xuezhi Li, Hang Dong, Baozhen Yang, Pengfei Liu, Chuanhui Dai, Xiang Shen, Yuhang Ren |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 41 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |