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Numerical Simulation of Gas and Liquid Two-phase Flow in Refining Ladle

机译：精炼钢包中气体两相流的数值模拟

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Based on Euler-Euler approach,a mathematical model was established to describe the bubbly plumes in the refining ladle.In this model,the correlation between the liquid fluctuating velocity and the spatial distribution of the bubbles was considered in the form of the turbulent dispersion force,which is included in the source terms of momentum equation.The bubble-induced turbulence is contained in the source terms of k-ε to account for the additional turbulent kinetic energy produced by the bubble motion.Simulation results of the gas volume fraction,liquid velocity and turbulent kinetic energy were compared with experimental data.The results show that the turbulent dispersion force dominates the distribution of gas volume fraction and is responsible for successful prediction of the gas volume fraction profile in the ladle.The bubble-induced turbulence has significant influence on the liquid turbulence and therefore appropriate model coefficients values were determined based on the comparison with experimental measurement.
机译：基于Euler-euler方法，建立了一种数学模型来描述精炼钢包中的气泡羽毛。在该模型中，液体波动速度与气泡的空间分布之间的相关性以湍流分散力的形式考虑，其中包括在动量方程的源极方程中。呼吸诱导的湍流包含在K-ε的源极序中，以考虑由气泡运动产生的额外的湍流动能。将气体体积分数，液体的结果将速度和湍流动能与实验数据进行比较。结果表明，湍流分散力占据了气体体积分数的分布，并负责成功预测钢包中的气体体积分数曲线。湍流造成的影响在液体湍流上，因此基于比较确定适当的模型系数值ISON与实验测量。

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