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Large Eddy Simulation of Transient Flow, Particle Transport, and Entrapment in Slab Mold with Double‐Ruler Electromagnetic Braking
Steel Research International ( IF 1.9 ) Pub Date : 2021-01-05 , DOI: 10.1002/srin.202000582 Yanbin Yin 1 , Jiongming Zhang 1 , Haitao Ma 1 , Qinghai Zhou 1
Steel Research International ( IF 1.9 ) Pub Date : 2021-01-05 , DOI: 10.1002/srin.202000582 Yanbin Yin 1 , Jiongming Zhang 1 , Haitao Ma 1 , Qinghai Zhou 1
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To study the transient transport and capture of inclusions and argon bubbles simultaneously in slab mold with double‐ruler electromagnetic braking (EMBr), a transient large eddy simulation model coupling molten steel flow, solidification, electromagnetic field, and particle motion is constructed. In this model, momentum transfer between argon bubbles and molten steel is implemented by two‐way coupling. The results indicate that the EMBr changes the molten steel transient flow pattern in the liquid pool. Due to the braking effect, the asymmetry and instability of the molten steel transient flow are weakened. Moreover, EMBr changes the transient particle (inclusion and argon bubble) transports inside the liquid pool. The particle motions inside the liquid pool are constrained, and the dispersion of the particles inside the liquid pool is weakened by EMBr. In addition, the contents of particles within the slab surface layer are decreased under the application of EMBr. Nevertheless, in the slab interior, the contents of the particles under the application of EMBr are higher than those in the absence of EMBr.
中文翻译：
带有双尺电磁制动的平板模具瞬态流动，颗粒传输和截留的大涡模拟
为了研究带有双尺电磁制动（EMBr）的板坯模具中夹杂物和氩气气泡的瞬态传输和捕获，建立了一个将钢水流动，凝固，电磁场和颗粒运动耦合起来的瞬态大涡模拟模型。在该模型中，氩气气泡与钢水之间的动量传递是通过双向耦合实现的。结果表明，EMBr改变了液池中钢水的瞬态流动模式。由于制动作用，钢水瞬态流的不对称性和不稳定性被减弱。此外，EMBr改变了液池内部瞬态颗粒（夹杂物和氩气气泡）的传输。液体池内部的粒子运动受到限制，EMBr减弱了液体在池中的分散。另外，在EMBr的应用下，平板表面层内的颗粒含量降低了。但是，在板坯内部，使用EMBr时的颗粒含量要高于不使用EMBr时的含量。
更新日期：2021-01-05
中文翻译：
带有双尺电磁制动的平板模具瞬态流动，颗粒传输和截留的大涡模拟
为了研究带有双尺电磁制动（EMBr）的板坯模具中夹杂物和氩气气泡的瞬态传输和捕获，建立了一个将钢水流动，凝固，电磁场和颗粒运动耦合起来的瞬态大涡模拟模型。在该模型中，氩气气泡与钢水之间的动量传递是通过双向耦合实现的。结果表明，EMBr改变了液池中钢水的瞬态流动模式。由于制动作用，钢水瞬态流的不对称性和不稳定性被减弱。此外，EMBr改变了液池内部瞬态颗粒（夹杂物和氩气气泡）的传输。液体池内部的粒子运动受到限制，EMBr减弱了液体在池中的分散。另外，在EMBr的应用下，平板表面层内的颗粒含量降低了。但是，在板坯内部，使用EMBr时的颗粒含量要高于不使用EMBr时的含量。
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