| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Computational Thermodynamics and Kinetics
|
| Presentation Title |
O-17: Multi-phase-field Modeling for Interaction of Moving Dendritic Particles |
| Author(s) |
Namito Yamanaka, Tomohiro Takaki, Shinji Sakane , Yasushi Shibuta , Munekazu Ohno |
| On-Site Speaker (Planned) |
Namito Yamanaka |
| Abstract Scope |
Simulation of motion of multiple growing dendrites is a challenging theme in alloy solidification. In our previous study, we enabled the simulation of growth, motion, collision, and coalescence of multiple equiaxed dendrites and grain growth after coalescence by employing a phase-field lattice Boltzmann model [Comput. Mater. Sci., 147 (2018) 124–131]. However, in the model we assumed a perfect inelastic collision, where two equiaxed dendrites are immediately coalesced into one solid at the collision. To improve the accuracy of the model, we introduce an elastic collision among the dendritic particles in this study. We also introduce a double-obstacle potential, instead of a double-well obstacle, to effectively treat the massive number of grains. We show some simulation examples of multiple dendrite particles with motion. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |