Determining local residence time distributions in twin-screw extruder elements via smoothed particle hydrodynamics

Hannes Bauer,Josip Matić,Rachel C. Evans,Andreas Gryczke,William Ketterhagen,Kushal Sinha,Johannes Khinast

Chemical Engineering Science（2022）

Cited 12|Views0

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Abstract

•Twin-screw elements were efficiently simulated with SPH flow simulations.•Numerous elements of different shape and form were investigated.•Local Residence Time Distributions of various screw element types were determined.•A time-extrapolation method to mitigate computational cost was developed and validated.•In-silico tracer experiments reveal underlying flow patterns of different screw geometries.

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Key words

Hot Melt Extrusion,HME,Twin-screw extruder element,TSE,Smoothed particle hydrodynamics,SPH,Residence time distribution,RTD

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