Simulation of Rotating Continuous Casting of Steel: Thermo-hydrodynamics and Particles Motion

Grégory Fidel (1, 2) , Michel Bellet (1) , Sylvain Witzke (2) , Georges Martinez (2) , Jérôme Giusti (2)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 Aperam Imphy

In Rotating Continuous Casting (RCC), the vertical billet, the mould and the support rolls rotate at about 1 rotation/sec. The mould is fed by a liquid steel free plunging jet. A numerical modelling of the RCC has been developed. The aim of this article is to study the effects of the free plunging jet and of the rotation on : the fluid flow, the thermal state, the solidification and on the particles motion. The modelling of the RCC uses a levelset method to capture the interface between the liquid steel and argon. A stabilized Navier-Stokes method is used to compute the fluid flow. A stabilized thermal solver is used to study the thermal field and the solidification of steel. A Euler-Lagrange approach is used to solve the motion of argon bubbles and inclusions. Hydrodynamics and particles motion are confronted to observations made on a cold water model. All developed methods are validated and applied to the RCC.

Mots clés: Continuous casting; plunging jet; hydrodynamics; heat-transfert; solidification; particles motion

Domaines: Matériaux

Grégory Fidel, Michel Bellet, Sylvain Witzke, Georges Martinez, Jérôme Giusti. Simulation of Rotating Continuous Casting of Steel: Thermo-hydrodynamics and Particles Motion. 4th International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking, Jun 2011, Düsseldorf, Germany. 10 p. ⟨hal-00678215⟩