电磁制动下板坯连铸结晶器内金属流场三维模拟的基本流态与主流场分析

doi:10.3969/j.issn.1007-2861.2015.02.006

Abstract

Abstract:

Using mercury as working medium in the earlier study, physical simulation was intended to investigate the liquid flow in a mold of slab in continuous casting with electromagnetic braking (EMBr). From the restrictions on the size and quantity of the sensors, the result of mercury model was limited to analysis in a two-dimensional flow field. Based on the previous physical simulation, a three-dimensional flow was simulated numerically with a standard k-ε turbulence model to investigate influences of the magnetic field intensity, and distribution on the metal flow in the mold of slab in continuous casting with and without EMBr. Simulation results were compared with the physical results. It was found that the simulation could reveal more detailed phenomena and flow behaviors. These could not be observed in physical simulation as restricted by the quantity of sensors. The results indicated that a flow field in a crystallizer had a complex three-dimensional flow field characteristic with a flow control mold (FC Mold) EMBr mode. More attention must be paid to mold slow liquid level caused by surface inclusions, transverse crack and other factors. Appropriate and effective EMBr should match the continuous casting process.

Key words: mold , electromagnetic braking (EMBr) , flow , standard k-ε turbulence model, continuous casting of slab

ZHOU Ran, FAN Yafu, DENG Kang, ZHANG Zhenqiang, REN Zhongming. Analysis of liquid metal flow with electromagnetic braking in continuous casting of slab by three-dimensional simulation[J]. Journal of Shanghai University（Natural Science Edition）, 2016, 22(6): 701-709.

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Analysis of liquid metal flow with electromagnetic braking in continuous casting of slab by three-dimensional simulation

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