Aspherix® and CFDEM®coupling allow for the high-fidelity simulation of melting processes in multi-phase environments, such as HBI ingots within a liquid steel and slag crucible. By leveraging advanced heat transfer models and density-driven buoyancy, the software accurately predicts how solid particles interact at the slag-liquid interface while subjected to magnetic field-induced stirring. This digital twin approach tracks the mass evolution of particles as they phase-change into the liquid melt, providing predictive insights into thermal efficiency. This enables R&D managers to optimize melting cycles, refine energy consumption, and ensure superior chemical homogeneity in metallurgical vessels.