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首页> 外文会议>CFD modeling and simulation in materials processing 2018 >Numerical Simulation of Turbulence Flow and Solidification in a Bloom Continuous Casting Mould with Electromagnetic Stirring
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Numerical Simulation of Turbulence Flow and Solidification in a Bloom Continuous Casting Mould with Electromagnetic Stirring

机译：电磁搅拌大方坯连铸结晶器内湍流和凝固的数值模拟

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摘要

Based on the Maxwell's equations and a revised low-Reynolds number k-e turbulence model, a coupled three-dimensional numerical model has been developed to describe the electromagnetic field, fluid flow and solidification in a bloom continuous casting mould with electromagnetic stirring (M-EMS). The stirring electric current effects on the turbulent flow, temperature distribution and shell growth are investigated numerically. According to the simulation result, the electromagnetic force has a circumferential distribution on the strand transverse section, and a swirling flow field along the axial direction is observed in the mould region with the application of M-EMS, which changes the flow pattern of melt in the mould significantly and promotes the superheat dissipation of the molten steel. Moreover, overlarge current intensity will generate an inhomogeneous solidified shell at the exit of the mould due to the tangential velocity of the swirling flow and the installed position of the M-EMS.
机译：基于麦克斯韦方程和修正的低雷诺数ke湍流模型，开发了一个耦合的三维数值模型来描述电磁搅拌（M-EMS）的大方坯连铸结晶器中的电磁场，流体流动和凝固。数值研究了搅拌电流对湍流，温度分布和壳长的影响。根据模拟结果，电磁力在钢绞线横截面上具有圆周分布，并且通过使用M-EMS在模具区域观察到沿轴向的涡旋流场，从而改变了熔体的流动模式。显着改善铸型，并促进钢水的过热散发。而且，由于旋流的切线速度和M-EMS的安装位置，过大的电流强度将在模具的出口处产生不均匀的凝固壳。

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