Analysis of the Influence of Vertical EMBr on Steel/slag Interface in Continuous Casting

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Xu, L.^1 ; Wang, E.G.^1 ; Karcher, C.^2 ; Deng, A.Y.^1 ; Xu, X.J.^1

Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, No. 3- 11, Wenhua Road, Shenyang

11004, China^1

Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, P.O. Box 100565, Ilmenau

98684, Germany^2

关键词: Continuous casting mold;    Electromagnetic brakes;    Impingement regions;    Interface fluctuation;    K-Omega turbulence model;    Recirculation zones;    Reynolds-Averaged Navier-Stokes;    Static magnetic fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012034/pdf
DOI  :  10.1088/1757-899X/424/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this article, the impact of an electromagnetic brake (EMBr) on the flow pattern in a continuous casting mold was simulated with an implemented Reynolds-averaged Navier-Stokes (RANS) SST k-ω turbulence model. A new type of EMBr, named vertical electromagnetic brake (V-EMBr) was introduced to investigate its applicability and adaptability. The characteristics of electromagnetic field and flow field inside a 1450 mm × 230 mm mold with V-EMBr have been simulated. The numerical simulation results indicate that the static magnetic field generated by V-EMBr can cover both the vicinity of the mold narrow faces and the impingement region of jet flow, which can effectively control the liquid steel flow in the upper recirculation zone. The parametric study also shows that the braking effect on the surface velocity and steel/slag interface fluctuation is enhanced when the magnetic pole is placed close to the narrow face of the mold.