Experimental Evaluation of MHD Modeling

Electromagnetic stirring (EMS) is an established technique in the steel industry for controlling the structure of steel during continuous casting, yet experimental validations of magnetohydrodynamic (MHD) modeling in this context are scarce. This study aims to evaluate the efficacy of MHD methods traditionally used in steel continuous casting processes through a series of laboratory experiments. We conducted three key experiments: the first measured the distribution of a rotating magnetic field (RMF) without a loaded sample, the second assessed the torque induced by RMF on various cylindrical solid samples, and the third evaluated the RMF-induced rotational velocity of liquid metal within a cylindrical crucible. The MHD calculations were performed by coupling ANSYS Maxwell with ANSYS Fluent, incorporating the Lorentz force into the Navier–Stokes equations. By comparing simulation results to our experimental benchmarks, we assessed the accuracy of different coupling methods and simplification strategies in MHD calculations. Ultimately, this research establishes a necessary simplification approach for MHD modeling in continuous casting and demonstrates the application of this strategy in practical casting processes.