相关实验视频
Updated: Jun 14, 2026

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Experimental Multiscale Methodology for Predicting Material Fouling Resistance
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研究直流弧温度场,压力场和潜在处理参数的灵敏度
Yongjun Liu1, Gaosong Li1, Shuai Zhang1
1School of Intelligent Manufacturing, Huanghuai University, Zhumadian 463000, China.
Micromachines
|August 28, 2025
概括
这项研究研究了电流和气流如何影响直流弧温度和压力. 较高的电流显著增加弧度的温度和压力,而气体流有复杂的影响,取决于电流水平.
科学领域:
- 物理
- 工程
- 材料科学
背景情况:
- 在造船和航空航天等行业中,直流电弧至关重要.
- 关于直流弧压力和温度对电流和保护气体流速的灵敏度的研究有限.
研究的目的:
- 通过数值建模直流弧的电热流多物理场.
- 调查不同电流和保护气体流速的弧度温度,压力和潜在场的变化规则.
主要方法:
- 建立了对联直流电热流多物理场的数值模型.
- 在100-600A和18-48L/分钟的气体流量范围内研究了电弧特性.
主要成果:
- 电流是影响弧度温度和潜在场敏度的主要因素.
- 弧心温度随着电流的上升而非线性上升到27,000K.
- 增加电流使压力场峰值转移,并将最大压力放大了14倍.
- 阿贡流量对温度场的影响随着电流的变化而变化,导致高电流的异常增加.
结论:
- 电流显著影响直流弧特性,包括温度和压力.
- 保护性气体流速对电弧行为具有复杂的,依赖于电流的影响.
- 揭示了能量积累机制,并构建了弧度收缩和流损失的模型.
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