Open AccessThree-phase numerical modeling for equiaxed solidification of Sn–10 wt.%Pb alloy under forced convection driven by electromagnetic force
Author(s) -
T Wang,
E Wang,
Yves Delannoy,
Yves Fautrelle,
O. Budenkova
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/529/1/012030
Subject(s) - equiaxed crystals , microscale chemistry , nucleation , materials science , mechanics , dendrite (mathematics) , heat transfer , convection , phase (matter) , forced convection , alloy , momentum (technical analysis) , body force , flow (mathematics) , fluid dynamics , thermodynamics , metallurgy , physics , mathematics education , mathematics , geometry , finance , quantum mechanics , economics
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.