电弧等离子体多物理场分布特征

doi:10.3901/JME.2022.08.153

机械工程学报 ›› 2022, Vol. 58 ›› Issue (8): 153-159.doi: 10.3901/JME.2022.08.153

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电弧等离子体多物理场分布特征

赵梦静¹, 王勇¹, 杨树峰¹, 段卫平², 刘威¹, 李京社¹

1. 北京科技大学冶金与生态工程学院北京 100083;
2. 天津铁厂有限公司邯郸 056404

收稿日期:2021-01-22 修回日期:2021-08-06 出版日期:2022-04-20 发布日期:2022-06-13
通讯作者: 杨树峰(通信作者),男,1981年出生,博士,教授,博士研究生导师。主要研究方向为夹杂物控制、高温合金冶炼、冶金过程的数值模拟。E-mail:yangshufeng@ustb.edu.cn
作者简介:赵梦静,女,1994年出生,博士研究生。主要研究方向为中间包冶金。E-mail:ustbzhaomengjing@ustb.edu.cn
基金资助:
国家自然科学基金资助项目(52074030,51734003)。

Distribution Characteristics of Multi-physics Fields in Arc Plasma

ZHAO Mengjing¹, WANG Yong¹, YANG Shufeng¹, DUAN Weiping², LIU Wei¹, LI Jingshe¹

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083;
2. Tianjin Iron Works Co., Ltd., Handan 056404

Received:2021-01-22 Revised:2021-08-06 Online:2022-04-20 Published:2022-06-13

摘要/Abstract

摘要： 等离子弧加热技术被广泛应用于冶金领域，采用磁流体动力学理论(Magnetohydrodynamic theory，MHD)建立直流电弧等离子体的数学模型，利用Fluent软件求解电磁场、温度场、速度场的耦合过程，研究不同弧长大小，不同入口速度对电弧温度分布、形貌、轴向速度分布和电流密度分布的影响。研究结果表明，弧长大小和入口速度对电弧特征分布有明显影响，但不是线性相关。电弧温度沿轴向降低，径向温度分布是以轴线为中心沿两侧径向逐渐降低，等离子弧温度呈“钟型”分布。电弧中心轴线速度在阴极处急剧增加然后逐渐降低。沿轴向方向，电流密度呈指数下降趋势。当入口速度为10 m/s时，随着弧长的增加，电弧有效作用面积范围也增加，当弧长为20 mm或25 mm时，射流现象最明显，轴向最大速度可达到约408 m/s。研究结果解释了不同弧长和入口速度对电弧特征的影响规律，为电弧等离子体加热工艺的应用提供了理论依据。

关键词: 电弧等离子, 温度场, 数值模拟, 电流密度, 弧长

Abstract: Arc plasma heating technology is widely used in metallurgy filed. The mathematical model of DC arc plasma is established by using magnetohydrodynamic (MHD) theory. The coupling process of electromagnetic field, temperature field and velocity field are solved by Fluent to investigate the influence of different arc length and inlet velocity on temperature distribution, shape and axial velocity and current density of arc plasma. The results show that the characteristics distribution of arc plasma is affected by arc length and inlet velocity, but they are not linear. The temperature of arc plasma decreases along the axial direction and the radial temperature distribution is centred on the axis and gradually decreases along the radial direction of both sides. The temperature of arc plasma is distributed in a bell type. The velocity of arc plasma sharply increases in axial direction and then decreases gradually. The current density decreases exponentially along the axial direction. When the inlet velocity is 10 m/s, the effective area of arc plasma increases with the increase of arc length. When the arc length is 20 mm or 25 mm, the jet phenomenon is the most obvious, and the maximum axial velocity is about 408 m/s. The results explain the influence of different arc length and inlet velocity on arc plasma characteristics and provide a theoretical basis for the application of arc plasma heating technology.

Key words: arc plasma, temperature filed, numerical simulation, current density, arc length

中图分类号:

TG444

赵梦静, 王勇, 杨树峰, 段卫平, 刘威, 李京社. 电弧等离子体多物理场分布特征[J]. 机械工程学报, 2022, 58(8): 153-159.

ZHAO Mengjing, WANG Yong, YANG Shufeng, DUAN Weiping, LIU Wei, LI Jingshe. Distribution Characteristics of Multi-physics Fields in Arc Plasma[J]. Journal of Mechanical Engineering, 2022, 58(8): 153-159.

参考文献

[1] BOULOS M I,FAUCHAIS P,PFENDER E. Thermal plasmas:fundamentals and applications[M]. New York:Springer Science&Business Media,2013.
[2] 过增元,赵文华.电弧和热等离子体[M].北京:科学出版社,1986. GUO Zengyuan,ZHAO Wenhua. Arc and thermal plasma[M]. Beijing:Science Press,1986.
[3] 南條敏夫.直流电弧炉的电弧现象[M].北京:冶金工业出版社,1998. NANJO T. Arc phenomenon in DC electric arc furnace[M]. Beijing:Metallurgical Industry Press,1998.
[4] CHEN Yuchao,LUO Qingxuan,SILAEN A K,et al. Multi-physics modeling of steel ingot melting by electric arc plasma and its application to electric arc furnace[J]. Frontiers in Materials,2020,7:336.
[5] 刘涛,赵梦静,杨树峰,等.中间包等离子加热工业试验[J].中国冶金,2020,30(10):36-40. LIU Tao,ZHAO Mengjing,YANG Shufeng,et al. Industrial test of plasma heating of tundish[J]. China Metallurgy,2020,30(10):36-40.
[6] YE Maolin,ZHAO Mengjing,CHEN Sai,et al. Influence of plasma heating on the metallurgical effects of a continuous casting tundish[J]. Metals,2020,10(11):1438-1447.
[7] TANAKA M,TERASAKI H,USHIO M,et al. A unified numerical modeling of stationary tungsten-inert-gas welding process[J]. Metallurgical and Materials Transactions A,2002,33(7):2043-2052.
[8] 姚聪林,朱红春,姜周华,等.电弧炉内长电弧等离子体的数值模拟[J].工程科学学报,2020,42(S1):60-67. YAO Conglin,ZHU Hongchun,JIANG Zhouhua,et al. Numerical simulation of long arc plasma in electric arc furnace[J]. Chinese Journal of Engineering Science,2020,42(S1):60-67.
[9] YAO Conglin,ZHU Hongchun,JIANG Zhouhua,et al. Numerical analysis of fluid flow and heat transfer by means of a unified model in direct current electric arc furnace[J]. Steel Research International,2021,92(6):1-10.
[10] ALEXIS J,JONSSON P,JONSSON L. Heating and electromagnetic stirring in a ladle furnace-a simulation model[J]. ISIJ International,2000,40(11):1098-1104.
[11] 鲍久圣,杨志伊,刘同冈,等.真空自由燃烧氦电弧温度场的数值模拟研究[J].真空,2006(4):58-61. BAO Jiusheng,YANG Zhiyi,LIU Tonggang,et al. Numerical simulation study on the temperature field of vacuum free combustion helium arc[J]. Vacuum,2006(4):58-61.
[12] LIU Senhui,TRELLES J P,MURPHY A B,et al. Numerical simulation of the flow characteristics inside a novel plasma spray torch[J]. Journal of Physics:D Applied Physics,2019,52(33):1-17.
[13] JIAN Xiaoxia,WU Chuansong. Numerical analysis of the coupled arc-weld pool-keyhole behaviors in stationary plasma arc welding[J]. International Journal of Heat&Mass Transfer,2015,84:839-847.
[14] TRELLES J P,PFENDER E,HEBERLEIN J. Multiscale finite element modeling of arc dynamics in a DC plasma torch[J]. Plasma Chemistry and Plasma Processing,2006,26(6):557-575.
[15] 陈浩.电弧加热等离子体流动特性研究[D].南京:南京理工大学,2014. CHEN Hao. Research on arc heating plasma flow characteristics[D]. Nanjing:Nanjing University of Science and Technology,2014.
[16] 肖磊,樊丁,黄健康.交变磁场作用下的GTAW非稳态电弧数值模拟[J].机械工程学报,2018,54(16):79-85. XIAO Lei,FAN Ding,HUANG Jiankang. Numerical simulation of unsteady arc in GTAW with alternate axial magnetic field[J]. Journal of Mechanical Engineering,2018,54(16):79-85.
[17] 董其鹏,张炯明,雷少武,等.直流等离子体电弧特性的模拟[J].焊接学报,2014,35(12):27-30,2. DONG Qipeng,ZHANG Jiongming,LEI Shaowu,et al. Simulation of characteristics of DC plasma arc[J]. Transactions of the China Welding Institution,2014,35(12):27-30,2.
[18] 翟泽,许四祥,郭宏晨,等.基于FLUENT的等离子弧数值模拟[J].热加工工艺,2014,43(3):199-202,205. ZHAI Ze,XU Sixiang,GUO Hongchen,et al. Numerical simulation of plasma arc based on FLUENT[J]. Thermal Processing Technology,2014,43(3):199-202,205.
[19] 田君国,邓晶,李要建,等.自由燃烧电弧的磁流体动力学数值模拟[J].力学学报,2011,43(1):32-38. TIAN Junguo,DENG Jing,LI Yaojian,et al. Magnetohydrodynamics numerical simulation of free combustion arc[J]. Chinese Journal of Theoretical and Applied Mechanics,2011,43(1):32-38.
[20] 黄卫星,武劭恂,司徒达志,等.直流电弧等离子炬温度场-电场分布特性数值模拟[J].工程科学与技术,2020,52(5):236-241. HUANG Weixing,WU Shaoxun,SITU Dazhi,et al. Numerical simulation of temperature field and electric field distribution characteristics of DC arc plasma torch[J]. Engineering Science and Technology,2020,52(5):236-241.
[21] 殷凤良,胡绳荪,李力,等.等离子体发生器的数值模拟方法[J].机械工程学报,2007,43(9):156-160. YIN Fengliang,HU Shengsun,LI Li,et al. Numerical simulation method of plasma arc generator[J]. Journal of Mechanical Engineering,2007,43(9):156-160.
[22] LI Linmin,LI Baokuan,LIU Lichao,et al. Numerical Modeling of fluid flow,heat transfer and arc-melt interaction in tungsten inert gas welding[J]. High Temperature Materials and Processes,2017,36(4):427-439.
[23] HSU K C,ETEMADI K,PFENDER E. Study of the free-burning high-intensity argon arc[J]. Journal of Applied Physics,1983,54(3):1293-1301.
[24] 邓晶,李要建,王蕊,等.等离子体电弧炉内流动与传热数值模拟[J].工程热物理学报,2010,31(5):879-882. DENG Jing,LI Yaojian,WANG Rui,et al. Numerical simulation of flow and heat transfer in plasma arc furnace[J]. Journal of Engineering Thermophysics,2010,31(5):879-882.
[25] 彭小飞,马国红,张玉刚,等.基于Fluent模拟TIG电弧燃烧[J].热加工工艺,2016,45(1):176-179. PENG Xiaofei,MA Guohong,ZHANG Yugang,et al. Simulation of TIG arc combustion based on Fluent[J]. Hot Working Technology,2016,45(1):176-179.

电弧等离子体多物理场分布特征

Distribution Characteristics of Multi-physics Fields in Arc Plasma

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