|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||CFD Modeling and Simulation in Materials Processing
||Numerical Simulation of Dendritic growth of Fe-C Binary Alloy with Natural Convection
||Sen Luo, Weiling Wang, Miaoyong Zhu
|On-Site Speaker (Planned)
Embedded the body force induced by the thermal and solutal gradient into the momentum conservation equation, a 2D CA-FVM model is developed for the numerical of dendritic growth with natural convection. In order to validate the model, the numerical simulation of Rayleigh-Bérnard convection in a rectangular cavity with the size of 2L×L is performed and compared with the empirical data. After model validation, the numerical simulation is performed for the dendritic growth of Fe-0.82wt%C alloy in the presence of natural convection. The results show that the natural convection induced by the thermosolutal buoyancy transport the heat and solute from the lower region to the higher region. Thus the dendritic growth is promoted in the downward region and whereas inhibited in the upward region. Consequently, the asymmetries of the dendrite morphology, temperature and solute profiles are developed and become more significant at the lower undercoolings.
||Planned: A print-only volume