Simulation of injection molding packing process based on 3D solid model
Based on the existing supercomputing platforms and finite volume method calculation programs,a numerical simulation calculation model for injection molding based on three-dimensional solid model is developed.The calculation is based on the compressible two-phase flow model,and discretized using the finite volume method.The interface is captured combined with the volume of fluid method(VOF).The rheological behavior of the polymer melt is characterized using Cross-WLF viscosity model.Taking the pressure holding process of the melt in the flat cavity and the cavity with cylindrical inserts as examples,the numerical simulation calculations are conducted.The distribution of flow characteristics,such as cavity pressure,temperature,and stress,is successfully predicted.The numerical simulation results are basically consistent with the results in the literatures.
injection moldingpressure holding processsolid modelfinite volume methodvolume of fluid method(VOF)
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