The Impact of an Oxidised Surface on the Melt Flow Driven by a Rotating Magnetic Field in a Cylindrical Column

摘要：

　　This paper considers the situation where the liquid metal flow with a free surface covered by an oxide layer is driven by a rotating magnetic field.The cylindrical configuration was investigated in an experiment accompanied by numerical simulations.The oxide layer feels the effect of the viscous force arising from the moving liquid beneath and the friction force from the side walls.A complex interaction occurs if both forces are in the same order of magnitude.Our measurements demonstrate that the occurrence of the oxide layer may lead to an unexpected oscillating behaviour of the bulk flow.Our numerical model was shown to be able to reproduce essential features of the phenomenon in a qualitative way.

关键词： electromagnetic stirring rotating magnetic field free surface oxide layer

作者: ECKERT Sven SHATROV Victor ZHANG Chaojie GERBETH Gunter

作者单位: Helmholtz-Zentrum Dresden-Rossendorf,P.O. Box 510119,01314 Dresden,Germany

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）