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基于流体力学,利用Fluent软件建立了连铸结晶器内钢水流动的三维数学模型,采用k-ε双方程高雷诺数湍流模型对板坯结晶器内的流场进行了模拟,研究了低拉速时结晶器控流装置对不同结构参数的水口条件下自由液面流场及温度场的影响。结果表明,结晶器流动控制装置(MFCD)对结晶器自由液面的影响与浸入式水口结构有关;1号水口条件下MFCD的加入可以降低自由液面的湍动能,2号水口条件下MFCD的加入增加了自由液面的湍动能。结晶器流动控制装置(插入深度50mm、100mm)并不适用于低拉速(0.55m/min)条件下的板坯连铸。
Based on fluid mechanics, the three-dimensional mathematical model of molten steel flow in continuous casting mold was established by Fluent software. The flow field in slab mold was simulated by k-ε two-way high Reynolds number turbulence model. Effect of Mold Current Control Device on Free Surface Fluid Flow and Temperature Field under Different Grouting Conditions. The results show that the influence of mold flow control device (MFCD) on the free surface of mold is related to the structure of submerged nozzle. The addition of MFCD under nozzle # 1 can reduce the turbulent kinetic energy of free surface, and the MFCD under nozzle # 2 Add turbulent kinetic energy that increases the free surface. Mold flow control (insertion depth 50mm, 100mm) is not suitable for slab casting at low draw speeds (0.55m / min).