Changes of unsteady multiphase fluid flow patterns of liquid steel during electric arc furnace-ladle tapping operations, with simultaneous argon bottom injection, are simulated using interfacial tracking computing techniques. The impinging steel jet interacts with the argon bubbling plume, suffering mutual bending effects, and imparting non-symmetric flows of liquid steel during the whole ladle filling time. At low bath levels, radial recirculating flows are generated and at high bath levels, these flows are substituted by vertical long flows generated by the permanent interaction between the impinging jet and the argon plume. Turbulence intensity increases as the bath level rises. Low bath levels are suitable for pre-melting and preheating ferroalloy particles. High bath levels of steel in the ladle, close to total ladle filling, are the most suitable conditions for thermal and chemical homogenizations. Argon gas forms an intermittent blanket over the air–liquid steel mix due to its higher density than air during the whole ladle filling time.

中文翻译：

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钢包中同时进行氩底部搅拌的钢攻丝过程中多相流型的变化

利用界面跟踪计算技术，模拟了电弧炉-钢包攻丝过程中同时进行氩气底部注入的液态钢非稳态多相流体流态的变化。撞击的钢水射流与氩气起泡羽流相互作用，相互弯曲，并在整个钢包填充时间内使钢水不对称流动。在低熔池水位时，会产生径向循环流，而在高熔池水位时，这些流将被撞击射流和氩羽之间的永久相互作用所产生的垂直长流所代替。湍流强度随着浴池液位的升高而增加。低熔池液位适用于预熔化和预热铁合金颗粒。钢包中钢水含量高，接近钢包总填充量，是热和化学均质化的最合适条件。氩气在整个钢水包填充时间内密度高于空气，因此在气液钢混合物上形成间歇性的覆盖层。