Effect of Argon Injection in Meniscus Flow and Turbulence Intensity Distribution in Continuous Slab Casting Mold Under the Influence of Double Ruler Magnetic Field

In the present investigation, an experimentally validated coupled two phase Magnetohydrodynamics (MHD) flow and turbulence model has been developed to analyse the combined implications of Argon injection and double ruler electromagnetic breaking (EMBr) in continuous casting flow control (FC) mold of the Tata Steel plant. The numerical model essentially solves transient Euler Euler two-phase model, turbulence, and MHD Maxwell equations for prescribed experimentally plant measurement of magnetic field boundary conditions data at various Argon flow rates, casting speeds, and submerged entry nozzle (SEN) depths. The numerical model primarily validated with the plant experimental measurement data and found to be in good agreement. The computational results demonstrate that the application of magnetic field suppresses turbulence and meniscus velocity decrement. However, increasing Argon flow rate is found to magnify meniscus velocity and turbulence intensity at the mold. The Argon gas injected from the ports clusters nearer to the SEN and a local chunk of it gradually escapes from the meniscus by short-circuiting its path. Effect of EMBr is not found to be prominent at the higher Argon gas flow rate values. Maximum meniscus level disturbance is noticed at an Argon flow rate of 10 L/min.