中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 25 No. 7 July 2015 |
（1. CAS Key Laboratory of Renewable Energy, Institute of Energy Conversion,
Chinese Academy of Sciences, Guangzhou 510640, China;
2. School of Mechanical and Automotive Engineering, South China University of Technology,
Guangzhou 510640, China）
Abstract:A numerical model of foundry filling process was established based on the smoothed particle hydrodynamics (SPH) method. To mimic the constraints that the solid mold prescribes on the filling fluid, a composite treatment to the solid boundaries is elaborately designed. On solid boundary surfaces, boundary particles were set, which exert Lennard-Jones force on approaching fluid particles; inside the solid mold, ghost particles were arranged to complete the compact domain of near-boundary fluid particles. Water analog experiments were conducted in parallel with the model simulations. Very good agreement between experimental and simulation results demonstrates the success of model development.
Key words: smoothed particle hydrodynamics; foundry filling process; composite boundary treatment; water analog experiment
