3D Numerical Simulation of Casting Filling Process Based on SPH Methods
Author of the article:SONG Zhenliang;NIU Xiaofeng;YAN Peiwen;ZHAO Jingyu;HUANG Huagui
Author's Workplace：School of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Polytechnic Institute,Taiyuan University of Technology,Taiyuan 030024,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China
Key Words：SPH dummy particle method numerical simulation casting filling process
Abstract：
A new meshless smooth particle hydrodynamics(SPH) method was introduced to simulate the filling process of casting. The SPH method can avoid the mesh distortion and winding in the process of solving the mesh method, and improve the precision of solving the mesh method. Based on the advantages of SPH method, the basic mathematical model was established and the 3 D calculation program was written. Moreover, the virtual particle boundary was used to solve the problem that the boundary was not easy to be applied in 3 D. Through the numerical simulation of the filling process of bottom injection flat panel casting, the simulation results are compared with the experimental results and the simulation results of ProCast based on grid method, and the feasibility and effectiveness of SPH method in calculating the filling process of casting are verified.
