Numerical simulation of the liquid steel alloying process in a one-strand tundish with different addition positions and flow control devices

2015 ◽  
Vol 112 (3) ◽  
pp. 308 ◽  
Author(s):  
Adam Cwudziñski
Keyword(s):  
Numerical Simulation ◽  
Flow Control ◽  
Liquid Steel ◽  
Flow Control Devices ◽  
Steel Alloying ◽  
Control Devices

scholarly journals Numerical Modelling of Fluid Flow and Thermal Phenomena in the Tundish of CSC Machine

2014 ◽  
Vol 14 (1) ◽  
pp. 103-106 ◽  
Author(s):  
L. Sowa
Keyword(s):  
Numerical Simulation ◽  
Flow Control ◽  
Liquid Steel ◽  
Metal Flow ◽  
Temperature Fields ◽  
Cast Slab ◽  
Flow Control Devices ◽  
Steel Cast ◽  
Control Devices ◽  
Steel Flow

Abstract The mathematical and numerical simulation model of the liquid steel flow in a tundish is presented in this paper. The problem was treated as a complex and solved by the finite element method. The single-strand slab tundish is used to continuous casting slabs. The internal work space of the tundish was modified by the following flow control devices. The first device was a striker pad situated in the pouring tundish zone. The second device was a baffle with three holes and the third device was a baffle without hole. The main purpose of using these devices was to cause a quiet liquid mixing as well as give directional metal flow upwards which facilitated inclusion floatation. The interaction of flow control devices on hydrodynamic conditions was received from numerical simulation. As a result of the computations carried out, the liquid steel flow and steel temperature fields were obtained. The influence of the tundish modification on velocity fields in the liquid phase of steel was estimated, because these have an essential influence on high quality of a continuous steel cast slab.

Numerical Simulation of the Molten Steel Flow in the Tundish of CSC Machine / Symulacja Numeryczna Przepływu Ciekłej Stali W Kadzi Pośredniej Urządzenia COS

2012 ◽  
Vol 57 (4) ◽  
pp. 1163-1169 ◽  
Author(s):  
L. Sowa ◽  
A. Bokota
Keyword(s):  
Numerical Simulation ◽  
Flow Control ◽  
Liquid Steel ◽  
Metal Flow ◽  
Velocity Fields ◽  
Temperature Fields ◽  
Cast Slab ◽  
Flow Control Devices ◽  
Control Devices ◽  
Steel Flow

The mathematical and numerical simulation model of the liquid steel flow in a tundish is presented in this paper. The problem was treated as a complex one. The velocity fields are obtained by solving the momentum equations and the continuity equation, whereas the thermal fields are calculated by solving the conduction equation with the convection term. One takes into consideration in the mathematical model the changes of thermophysical parameters depending on the temperature. The problem was solved by the finite element method. The one-strand slab tundish is used to casting slabs. The internal work space of the tundish was modified by flow control devices. The first device was a striker pad situated in the pouring tundish zone. The second device was a baffle with three holes. The main purpose of using these was to put barriers in the steel flow path as well as give directional metal flow upwards which facilitated inclusion floatation. The visualization of interaction of flow control devices on hydrodynamic conditions was received from numerical simulations. As a result of the computations carried out, the liquid steel flow and steel temperature fields were obtained. The influences of the tundish modifications on the velocity fields in liquid phase of the steel were estimated, because these have essential an influence on high-quality of a continuous steel cast slab.

scholarly journals Effect Of Steel Flow Control Devices On Flow And Temperature Field In The Tundish Of Continuous Casting Machine

2015 ◽  
Vol 60 (2) ◽  
pp. 843-847 ◽  
Author(s):  
L. Sowa
Keyword(s):  
Mathematical Model ◽  
Flow Control ◽  
Numerical Simulations ◽  
Liquid Steel ◽  
Continuous Casting Machine ◽  
Casting Machine ◽  
Flow Control Devices ◽  
Control Devices ◽  
Steel Flow ◽  
The Mathematical Model

AbstractThe mathematical model and numerical simulations of the liquid steel flow in a tundish are presented in this paper. The problem was treated as a complex and solved by the finite element method. One takes into consideration in the mathematical model the changes of thermophysical parameters depending on the temperature. The single-strand tundish is used to casting slabs. The internal work space of the tundish was modified by flow control devices. The first device was a pour pad situated in the pouring tundish zone. The second device was a dam. The third device was a baffle with three holes. The dam and baffle were placed in the tundish at different positions depending on the variant. The main purpose of using these was to put barriers in the steel flow path as well as give directional metal flow upwards which facilitated inclusion floatation. The interaction of flow control devices on hydrodynamic conditions was received from numerical simulations. As a result of the computations carried out, the liquid steel flow and steel temperature fields were obtained. The influences of the tundish modifications on the velocity fields in liquid phase of the steel were estimated, because these have essential an influence on high-quality of a continuous steel cast slab.

Numerical Analysis of Liquid Steel Flow Structure in the One Strand Slab Tundish with Subflux Turbulence Controller and Dam

2012 ◽  
Vol 57 (1) ◽  
pp. 297-301 ◽  
Author(s):  
A. Cwudziński ◽  
J. Jowsa
Keyword(s):  
Numerical Analysis ◽  
Flow Control ◽  
Flow Structure ◽  
Liquid Steel ◽  
Work Space ◽  
Internal Work ◽  
Flow Control Devices ◽  
Control Devices ◽  
The One ◽  
Steel Flow

Numerical Analysis of Liquid Steel Flow Structure in the One Strand Slab Tundish with Subflux Turbulence Controller and Dam The paper present the results of computational calculation showing liquid steel flow in the tundish. The one-strand slab tundish is used to casting slabs. The internal work space of tundish was modified by two flow control devices (FCDs). The first device is subflux turbulence controller situated in the pouring tundish zone. The second FCD is a dam with two holes. The dam presently using in the industrial conditions was modified by changing a height. Adapted to internal work space new flow control devices were located in the tundish virtual model. Numerical model and computational grid of tundish was performed in the Gambit application. The visualization of interaction of flow control devices on hydrodynamic conditions was received from numerical simulation. As a results of the computations carried out, liquid steel flow fields, turbulence intensity maps, steel temperature maps and RTD curves (E and F) were obtained. On the distribution of RTD characteristics, percentage contributions of stagnant, plug, ideal mixing flow type, and transition grade zone were calculated.

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