5th International Conference on Advances in Solidification Processes (ICASP-5) 5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining (CSSCR-5)

A three-phase equiaxed solidification model where macroscale heat transfer and fluid flow are coupled with microscale nucleation and dendrite growth, is applied to the simulation of the macrosegregation in binary alloy solidification subjected to the electromagnetic stirring. The investigated experimental solidification case is conducted in a cavity which has a good control of the thermal boundary conditions. The proposed model uses a double time step scheme to accelerate the solution. Electromagnetic force is introduced as a source term into momentum equation in analytical form. To account for the friction from the side walls, a 2D½ flow model is applied to a three-dimensional experimental configuration. A comparison between the results of simulation and experimental ones is made. Acknowledgements ---------------- This work is a joint cooperation between SIMAP laboratory of Grenoble INP (France) and Key Laboratory of EPM of Northeastern University (P. R. China). The authors gratefully acknowledge financial support from China Scholarship Council (no. 201706080074), National Key R&D Program of China (Grant No. 2017YFE0107900) and National Nature Science Foundation of China (Grant No. U1760206). References ---------- 1. A.I. Ciobanas, Y. Fautrelle: J. Phys. D. Appl. Phys., 40(12) (2007) 3733–3762 2. C.Y. Wang, C. Beckermann: Metall. Mater. Trans. A, 27(9) (1996) 2754–2764