论文信息 - Flow modelling in casting processes

Flow modelling in casting processes

Abstract Advances in modelling of casting processes using smoothed particle hydrodynamics (SPH) are described. Three-dimensional simulations of high pressure die casting are presented for two realistic dies. Developments needed for both visualisation of these systems and for their simulation are described. Comparison of SPH and MAGMAsoft simulations with experimental results from water analogue modelling are made for gravity die casting. The SPH comparisons are particularly good, with the method able to capture the fine details of the free surface motion, including plume shape, frequency and phase of oscillation and the correct relative heights of all the free surfaces.

[1] C. W. Hirt,et al. Volume of fluid (VOF) method for the dynamics of free boundaries , 1981 .

[2] Paul W. Cleary,et al. Modelling confined multi-material heat and mass flows using SPH , 1998 .

[3] J. Morris. Simulating surface tension with smoothed particle hydrodynamics , 2000 .

[4] Paul W. Cleary,et al. High pressure die casting simulation using smoothed particle hydrodynamics , 2000 .

[5] Damir Juric,et al. Numerical recipes for mold filling simulation , 1998 .

[6] S. Cummins,et al. An SPH Projection Method , 1999 .

[7] J. Morris,et al. Modeling Low Reynolds Number Incompressible Flows Using SPH , 1997 .

[8] J. Monaghan. Simulating Free Surface Flows with SPH , 1994 .

[9] Francis H. Harlow,et al. Numerical Study of Large‐Amplitude Free‐Surface Motions , 1966 .

[10] J. Monaghan. Smoothed particle hydrodynamics , 2005 .

[11] Paul W. Cleary,et al. Comparison of SPH simulations of high pressure die casting with the experiments and VOF simulations of Schmid and Klein , 2000 .

[12] F. Harlow,et al. THE MAC METHOD-A COMPUTING TECHNIQUE FOR SOLVING VISCOUS, INCOMPRESSIBLE, TRANSIENT FLUID-FLOW PROBLEMS INVOLVING FREE SURFACES , 1965 .

[13] R W Hockney,et al. Computer Simulation Using Particles , 1966 .