Further Development of Mathematical Models for Free-Burning Electric Arcs

被引：0

作者：

Djakov, Boyan E. ^{[1
]}

Shpanin, Leonid M. ^{[2
]}

Jones, Gordon R. ^{[3
]}

Spencer, Joseph W. ^{[3
]}

Yan, Jiu Dun ^{[3
]}

机构：

[1] Bulgarian Acad Sci, Nucleus Plasma Test Lab, Bldg Inst Elect, Sofia 1784, Bulgaria

[2] Sheffield Hallam Univ, Dept Engn & Math, Sheffield S1 1WB, England

[3] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, England

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2024年 / 52卷 / 04期

关键词：

Mathematical models; Plasma temperature; Conductivity; Plasmas; Atmospheric modeling; Stimulated emission; Thermal conductivity; Arc discharges; arc modeling; arc plasma devices; current interruption; plasma control;

D O I：

10.1109/TPS.2024.3379842

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A mathematical model predicting the electric arc plasma behavior in air and atmospheric pressure is developed. Modeling algorithms are reported for free-burning (rather than wall stabilized) dc-arc parameters, such as the arc radial temperature distribution T(r), electric field E along the arc column, and arc radius r(0) (radius of the electrically conductive zone sigma > 0). Such arcs may have more complex structures than wall-stabilized arcs. Examples of such arcs are electromagnetically rotated arcs, electric arc furnaces (EAFs), and lightning return stroke (LRS). By comparison with experimental data and with more precise calculations, the model was validated practically and theoretically and formed the basis for investigating the behavior of complex electromagnetically convoluted arcs in the process of interrupting direct currents.

引用

页码：1433 / 1441

页数：9

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