Conclusions

A two-dimensional transient magnetohydrodynamic model of continuous casting of steel using ANSYS-FLUENT software is developed and an electromagnetic stirrer is placed on the mold at different positions. The electromagnetic field is applied horizontal and vertical directions separately, the effects are simulated at each position of the EMS and are compared with no EMS results and the following conclusions are made:
  1. The application of EMS causes churning which enables the liquid steel to interact with the solidified shell and enhances heat transfer inside of the mold.
  2. The churning effect reduces as the position of the EMS is lowered for both the directions of magnetic field and it is more pronounced in V-EMS
  3. The recirculation loops are formed at the centre of the mold in each case of EMS above and below of its position and are more well-defined with V-EMS.
  4. The velocity accelerates due to the stirring effect. As the position of EMS is lowered with respect to the meniscus, the velocity acceleration decreases and its effect on the walls also decreases.
  5. The mushy zone formed is visibly denser with the V-EMS and it is completely non-existent when no EMS was applied.
  6. It can be concluded from all these observations that the change in position of the EMS effects the solidification and velocities of fluid flow.
  7. The change of direction of stirring has a significant impact on the formation of mushy zone.
The author declares no potential conflict of interest.

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