3-D COUPLED NUMERICAL SIMULATION FOR THE FLOW FIELD AND TEMPERATURE FIELD ON ELECTROMAGNETIC STIRRING IN BILLET CONTINUOUS CASTING

2001 ◽  
Vol 37 (07) ◽  
pp. 74
Author(s):  
Jianmin Lei
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Flow Field ◽  
Continuous Casting ◽  
Electromagnetic Stirring ◽  
Billet Continuous Casting

Numerical Simulation of Flow Field in Bloom Continuous Casting Mold with Electromagnetic Stirring

2010 ◽  
Vol 146-147 ◽  
pp. 272-276 ◽  
Author(s):  
Jing Zhang ◽  
En Gang Wang ◽  
An Yuan Deng ◽  
Xiu Jie Xu ◽  
Ji Cheng He
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Flow Field ◽  
Continuous Casting ◽  
Tangential Velocity ◽  
Electromagnetic Stirring ◽  
Continuous Casting Mold ◽  
Frequency Increase ◽  
Velocity Increase ◽  
Casting Mold

A coupled numerical simulation of magnetic field and flow field was conducted basing on Φ250mm bloom during continuous casting with electromagnetic stirring.The distribution of the flow field was analyzed in different current and frequency.At the same current,the velocity first decrease and then increase as the frequency increase along the casting direction.At the same frequency, tangential velocity is dominant in the radial of EMS center,velocity increase with the current. Considered the results of numerical simulation,the optimized EMS parameters of Φ250mm bloom are the stirring current of 480A and the stirring frequency of 3Hz.

Numerical Simulation of Electromagnetic flow, Temperature Field and Flow Field in Laser Molten Pool with Electromagnetic Stirring

2015 ◽  
Vol 42 (2) ◽  
pp. 0202007 ◽  
Author(s):  
王维 Wang Wei ◽  
刘奇 Liu Qi ◽  
杨光钦 Yang Guang ◽  
兰云 Qin Lanyun ◽  
薛雄 Xue Xiong
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Flow Field ◽  
Molten Pool ◽  
Electromagnetic Stirring ◽  
Flow Temperature ◽  
Electromagnetic Flow

Effects of U-Shape Inner Cooler on Flow and Solidification of Molten Steel in Slab Continuous Casting Mold

2011 ◽  
Vol 291-294 ◽  
pp. 423-427
Author(s):  
Yan Juan Jin ◽  
Xiao Chao Cui ◽  
Zhu Zhang
Keyword(s):  
Fluid Dynamics ◽  
Temperature Field ◽  
Flow Field ◽  
Continuous Casting ◽  
Molten Steel ◽  
Continuous Casting Mold ◽  
Slab Continuous Casting ◽  
Cooling Technology ◽  
Steel Flow

An inner-outer coupled cooling technology of molten steel for 1240×200mm slab continuous casting, that is to set an inner cooler—U shape pipes in the mold, is put forward in order to enhance the efficiency of transmitting heat and improve inner structure of billet. The flow status and solidification status of molten steel under coupling flow field and temperature field in inner-outer coupled cooling mold are simulated by using fluid dynamics software, and compare with those in traditional mold. It is found that setting inner cooler in the mold can make molten steel flow status even, which is favorable to floating up of the inclusion, quickening the solidification of steel liquid and improving the quality of billet.

Numerical Simulation of Inner-Outer Couple Cooling Slab Continuous Casting in the Filling Process

2012 ◽  
Vol 557-559 ◽  
pp. 2257-2260
Author(s):  
Yan Juan Jin ◽  
Xiao Chao Cui ◽  
Yan Xia Chen
Keyword(s):  
Temperature Field ◽  
Flow Field ◽  
Continuous Casting ◽  
Molten Steel ◽  
Solidification Rate ◽  
Surface Shape ◽  
Filling Process ◽  
Slab Continuous Casting ◽  
Free Surface Shape ◽  
Steel Flow

In the paper, flow status and solidification status of molten steel in inner-outer couple cooling mold in the filling process are simulated by using fluid dynamics software Flow-3d, and obtain distributing diagrams of flow field and temperature field and free-surface shape diagrams in the filling process. Influences of flow field and temperature field of filling process on solidification are analyzed in the slab continuous casting. It is indicated that inner cooler can improve molten steel flow status, which is favorable to inclusion in molten steel floating up, quicken the solidification rate of molten steel in the mold.

Numerical Simulation of Air Curtain Used in the Cold Store through Different Models

2013 ◽  
Vol 749 ◽  
pp. 554-560
Author(s):  
Jing Xie ◽  
Chen Miao ◽  
Zhi Li Gao ◽  
Jian Bing Shi ◽  
Tai Wang
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Flow Field ◽  
Numerical Models ◽  
Air Flow ◽  
Boussinesq Approximation ◽  
Optimal Model ◽  
Air Curtain ◽  
Cold Store ◽  
Operation Rule

Air curtains are commonly used to cut off air flow between the cold store and hot environment, and reduce heat and mass transfer in order to maintain the low temperature in the cold store. CFD can be used to predict operation rule of air curtain used in the cold store intuitively and modelling is the most important part of numerical simulation of air curtain used in the cold store. In this study, different numerical models including standardmodel (with and without boussinesq approximation) and RSM (with and without boussinesq approximation) were used to simulate the temperature field and air flow field in the cold store and operation rule of air curtain used in the cold store after air curtain opened for 60s. Meanwhile, the actual operation of air curtain used in the cold store was tested and the simulation values were compared with the experimental values. The results showed that the velocity of the central mainstream decayed slowly, but the velocity of both sides of air curtain decayed fast. The optimal model used to predict the temperature field and air flow field in the cold store and operation rule of air curtain used in the cold store was standardmodel with boussinesq approximation, the relative error was within 20%. The optimal model can be used to predict the temperature field and air flow field in the cold store during different times in the future research.

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