Modeling of an Impinging Oxygen Jet on Molten Bath Surface in 150 t EAF

A transient three-dimensional mathematical model has been developed to analyze the three-phase flow in a 150 t EAF （electric arc furnace） using oxygen. VOF （multiphase volume of fluid） method is used to simulate the behaviors of molten steel and slag. Numerical simulation was conducted to clarify th...

Full description

Saved in:
Bibliographic Details
Published in:Journal of iron and steel research, international international, 2011-09, Vol.18 (9), p.13-20
Main Authors: HE, Chun-lai, ZHU, Rong, DONG, Kai, QIU, Yong-quan, SUN, Kai-ming
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Computer simulation
electric arc furnace
Engineering
Flow rate
Fluid dynamics
Iron and steel industry
Iron and steel making
Machines
Manufacturing
Materials Engineering
Materials Science
Mathematical models
Metallic Materials
numerical simulation
Physical Chemistry
Processes
Slags
Steels
three-phase flow
射流穿透深度
建模
撞击
数值模拟
氧气射流
水模型实验
熔池
表面
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A transient three-dimensional mathematical model has been developed to analyze the three-phase flow in a 150 t EAF （electric arc furnace） using oxygen. VOF （multiphase volume of fluid） method is used to simulate the behaviors of molten steel and slag. Numerical simulation was conducted to clarify the transient phenomena of oxygen impingement on molten bath. When oxygen jet impinges on the surface of molten bath, the slag layer is broken and the penetrated cavity in molten steel is created. Simultaneously, the wave is formed at the surface of uncovered steel on which the slag layer is pushed away by jet. The result of numerical simulations shows that the area and velocity of uncovered steel created by impingement, jet penetration depth change from 0. 10 m2 , 0. 012 5 m/s, 3.58 cm to 0.72 m2 , 0. 1445 m/s, 11.21 cm, when the flow rate of an oxygen lance varies from 500 to 2000 m3/h. The results have been validated against water model experiments. More specially, the relation between the penetration depth and oxygen flow rate predicted by numerical simulation has been found to agree well with that concluded by water model.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(12)60028-4