Fluid flow pattern and buoyancy force support the motion of nonmetallic inclusions toward the tundish slag.Upward molten flow was investigated.To understand the fundamentals of the process,physical modelling was carried out with the utilization of a 1:4 scale model.Numerical modelling was carried out in line with the physical modelling to examine details of the flow pattern and rotational effect caused by the upward flow with the commercial CFD (Computational Fluid Dynamics) package environment,FLUENT.The two-equation k-ε model was used to simulate the turbulence.Multiphase fluid flow was numerically simulated by using the Volume of Fluid (VoF) method.The simulation can predict free surface waves and other phenomena,which can be used to optimize these important metallurgical operations.
参考文献
| [1] | Tanaka H;Nishihara R;Kitagawa I et al.Quantitative Analysis of Contamination of Molten Steel in Tundish[J].ISIJ International,1993,33(12):1238. |
| [2] | Tacke K H;Ludwig J C .Steel Flow and Inclusion Separation in Continuous Casting Tundishes[J].Steel Research International,1987,58(06):262. |
| [3] | Kaufmann H B;Niedermayr A;Sattler H et al.Separation of Nonmetallic Particles in Tundishes[J].Steel Research International,1993,64(04):203. |
| [4] | Tozawa K;Kato Y;Nakanishi T .Number of Solid Particles Per Inclusion Cluster[J].Current Advances in Materials and Processes,1997,10:105. |
| [5] | Sinha A K;Sabai Y .Mathematical Modeling of Inclusion Transport and Removal in Continuous Casting Tundishes[J].ISIJ International,1993,33(05):556. |
| [6] | Hlinka J W.Water Model for the Quantitative Simulation of the Heat and Fluid Flow in Liquid-Steel Refractory Systems[A].London:The Metals Society,1975:157. |
| [7] | Chakraborty S;Sahai Y .Mathematical Modelling of Transport Phenomena in Continuous Casting Tundishes.Part 2.Transient Effects Owing to Varying Ladle Stream Temperature[J].Ironmaking and Steelmaking,1992,19(06):479. |
| [8] | Chakraborty S;Sahai Y .Mathematical Modelling of Transport Phenomena in Continuous Casting Tundishes.Part 1.Transient Effects During Ladle Transfer Operations[J].Ironmaking and Steelmaking,1992,19(06):488. |
| [9] | Barreto Sandoval J de J;Barron Meza M A;Morales R D .Physical and Mathematical Modeling of Steel Flow and Heat Transfer in Tundishes Under Non-lsothermal and Non-Adiabatic Conditions[J].ISIJ International,1996,36(05):543. |
| [10] | Shih T H;Liou WW;Shabbir A et al.A New k-ε Eddy Viscosity Model for High Reynolds Number Turbulent Flows[J].Computers and Fluids,1995,24(03):227. |
| [11] | Fluenct Inc.Fluent 6.2:User's Guide[M].Lebanon:Fluent Inc,2005 |
| [12] | Hirt C W;Nichols B D .Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries[J].Journal of Computational Physics,1981,39(01):201. |
| [13] | Youngs D L.Time-Dependent Multi-Material Flow With Large Fluid Distortion[A].London,UK:Academic Press,1982:273. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%