LargLarge Eddy Simulation of Molten Steel and Argon Bubble flow in a Continuous Casting Mold
Euler-Euler simulation of the gas-liquid flow in a continuous casting mold with large eddy simulation (LES) is presented.The sub-grid scale modeling is based on the Smagorinsky model with the model constant Cs=0.1.The drag force and non-drag forces (lift force,virtual mass force and turbulent dispersion force) are incorporated in the model.Characteristics of the two phase flow in a slab continuous casting mold are obtained with this model.The ultrasonic testing results and industrial observation of exposed eyeare used to validate the model.The simulation results show that the flow of molten steel and argon gas are all deviation.With the decrease of the argon bubble diameter,more and more bubbles would gather in the upper of the mold,and the penetrating length of the gas plume is extended.When injecting argon gas,the vorticity strength of upper region of the mold become intense,but in the lower of the mold,the effect of swirl flow become disappearing.And with the decrease of the diameter,the impingement spot of molten steel move up near the region of narrow face,and the region of vorticity disappear becomes larger.
continuous casting mold large eddy simulation two phase flow Euler-Euler approach
LIU Zhong-qiu LI Bao-kuan JIANG Mao-fa Fumitaka Tsukihashi XU Guo-dong ZHANG Li
School of Materials and Metallurgy,Northeastern University,110819,Liaoning,China Department of Advanced Materials,Graduate School of Frontier Science,the University of Tokyo,5-1-5 K Baoshan Iron and Steel Limited Company,201900,Shanghai,China
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-5
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）