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Influence of channel curvature on flow, pressure distribution, and power requirements of screw pumps and melt extruders
Author(s) -
Booy M. L.
Publication year - 1963
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760030305
Subject(s) - curvature , materials science , mechanics , flow (mathematics) , channel (broadcasting) , volumetric flow rate , mechanical engineering , engineering drawing , geometry , mathematics , engineering , physics , electrical engineering
The influence of channel curvature on flow through screw pumps and melt extruders is derived for infinite channel aspect ratios. Flow rate and horsepower relations for flow of Newtonian liquids are given as functions of design parameters. The results of this cylindrical theory are compared with those of conventional theories. Curvature factors converting the equations of the flat plate theory to those of the cylindrical theory are shown. Pressure distributions in screw pump channel are analyzed.