Three-dimensional fluid flow model for gas-stirred ladles

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/s11665-997-0095-z· OSTI ID:514699

Pan, S M; Ho, Y H; Hwang, W S ^[1]

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1. National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Materials Science and Engineering

A three-dimensional mathematical model has been developed to simulate the fluid flow phenomena in gas-stirred ladles. It can predict the velocity profile and flow pattern of the liquid and the gas bubbles. The two-phase fluid flow phenomena were analyzed by using the SOLA-SURF technique supplemented with the {Kappa}-{var_epsilon} two-equation turbulence model. The interactions between the gas bubble motion and the liquid flow were also considered. The movements of the gas bubbles were calculated and the extent of the plume zone determined. The effects of various design/operation conditions, such as gas flow rate, location of the porous plug, and addition of an immersion hood, can be evaluated. Flow intensity and stirring ability increase with increased gas flow rate. The dead zone near the bottom corner of the ladle exists whether the porous plug is centered or off-centered; this problem only slightly improves when gas flow rate is increased. Addition of an immersion hood not only provides a slag-free and protective atmosphere inside the hood, but also reduces the dead zone.

• Sponsoring Organization: National Science Council, Taipei (Taiwan, Province of China)
• OSTI ID: 514699
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 3 Vol. 6; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CHEMICAL REACTORS
FLOW MODELS
FLOW RATE
GAS FLOW
LIQUID FLOW
METAL INDUSTRY
MIXING
STEELS
THREE-DIMENSIONAL CALCULATIONS
TWO-PHASE FLOW