Abstract
With the computational fluid dynamics (CFD) software POLYFLOW, simplified models and numerical simulation are conducted on the single screw pin unit and the single screw unit. Comparative analysis is carried out on the mixing properties of these two mixing units under vibration-less and vibrant operating conditions. It is found that in comparison to the single screw mixing unit, the pin unit has longer residence time, smaller segregation scale, larger mixing index and higher instantaneous efficiency of stretching; it also possesses better diffluence and rearrangement, flow state, fluidity and plasticization performance for the polymer melt particles under vibration field. This provides references for the design and research of new type mixing device.
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