Numerical simulation of fluid flow and alloy melting in RH process for electrical steels
作者机构：Anhui Province Key Laboratory of Metallurgical Engineering and Resources ReeyelingAnhui University of TechnologyMa'anshan 243002AnhuiChina School of Metalurgical EngineeringAnhui University of Technology.Ma'anshan 243002AnhuiChina State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijing 100083China Xinyu Iron and Steel Co.Ltd.Xinyu 338001JiangxiChina National Engineering and Research Centerfor Continuous Casting TechnologyCentral Iron and Steel Research InstituteBeijing 100081China
出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)
年 卷 期：2022年第29卷第9期
页 面：1423-1433页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：support from the Open Fund of Anhui Province Key Laboratory of Metallurgical Engineering&Resources Recycling(Anhui University of Technol-ogy)(SKF21-05) the Open Fund of State Key Laboratory of New technology of Iron and Steel Metallurgy(KF21-03) the National Natural Science Foundation of China(Grant Nos.51704005 and 51804003)
主 题：Discrete particle model Multiphase flow Gas expansion-Mixing time Alloy melting Numerical simulation
摘 要：Based on the Eulerian-Lagrangian approach,a mathematical model was established to describe the gas-liquid flow behavior in the Ruhrstahl-Heraeus(RH)*** momentum source and the turbulent kinetic energy source due to the motion of gas bubbles were considered for the liquid *** effect of the expansion of gas bubbles on the liquid velocity,recirculation rate,and mixing time was quantitatively *** the fluid flow reached the steady state,the melting and mixing processes of aluminum alloys in the RH degasser were also *** results indicate that the expansion of gas bubbles has a significant infuence on the recirculation rate and the mixing time in the RH *** the superheat of liquid steel and decreasing the initial diameter of alloy particles are beneficial to promote the melting and mixing of alloy *** to the existence of solidified steel shells,the maximum diameter of the alloy particle is about 1.5 times its initial diameter.
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