Three-dimensional modelling of electric-arc development in a low-voltage circuit-breaker

被引：9
|
作者：
Piqueras, L. [1 ]
Henry, D. [1 ]
Jeandel, D. [1 ]
Scott, J. [1 ,2 ]
Wild, J.
机构：
[1] Univ Lyon 1, Lab Mecan Fluides & Acoust, INSA Lyon, Ecole Cent Lyon,CNRS, F-69134 Ecully, France
[2] Schneider Elect, F-38050 Grenoble 9, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2008年 / 51卷 / 19-20期
关键词：
D O I：
10.1016/j.ijheatmasstransfer.2008.02.035
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This article describes direct numerical simulation of the first three milliseconds following ignition of the arc in a low-voltage circuit-breaker using a computational-fluid-dynamics code adapted for electric-arc modelling. The mobile electrode is allowed for by a moving mesh. The results describe the evolution of the are with time in terms of its detailed electrical, thermal and fluid dynamic properties. They allow the identification of several phases during the overall arc development process studied here: arc initialisation in the widening electrode gap, arc-thermal expansion, displacement of the arc towards the tip of the mobile electrode, and the beginning of commutation to the fixed electrode. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4973 / 4984
页数：12
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