Boundary-Conforming Finite Element Methods for Twin-Screw Extruders: Unsteady - Temperature-Dependent - Non-Newtonian Simulations.

Computers & Fluids（2019）

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摘要

•Mesh update method allows to use boundary-conforming methods for twin-screw extruders.•Very efficient method; no re-meshing needed and only based on algebraic operations.•2D and 3D mesh convergence achieved using non-Newtonian fluids.•A correspondence with experiments conducted with corn syrup could be shown.•3D time-dependent temperature results using multiple screw elements are presented.

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关键词

Co-rotating twin-screw extruder,Snapping reference mesh update method,Space-time finite elements,Mesh update method,Boundary-conforming finite elements,Temperature-dependent plastic melt

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