Numerical Simulation of Gas and Liquid Two-phase Flow in Refining Ladle
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.
Euler-Euler approach two-phase flow turbulent dispersion force bubble-induced turbulence refining ladle
LOU Wen-tao ZHU Miao-yong
School of Materials and Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-6
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）