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ANALYSIS of the HELICAL SCREW RHEOMETER FOR FLUID FOOD
Author(s) -
TAMURA MAGDALENA S.,
HENDERSON JERALD M.,
POWELL ROBERT L.,
SHOEMAKER CHARLES F.
Publication year - 1993
Publication title -
journal of food process engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 45
eISSN - 1745-4530
pISSN - 0145-8876
DOI - 10.1111/j.1745-4530.1993.tb00164.x
Subject(s) - rheometer , power law fluid , rheology , cylinder , non newtonian fluid , mechanics , newtonian fluid , materials science , viscosity , herschel–bulkley fluid , flow (mathematics) , mechanical engineering , physics , composite material , engineering
The Helical Screw Rheometer (HSR) is being evaluated for rheological measurements of fluid food suspensions. the HSR consists of a helical screw enclosed in a tight fitting cylinder. With a closed system the inner screw is rotated creating a linearly increasing pressure differential along the axis of the screw, which is proportional to the viscosity of the fluid. This paper presents theoretical one‐ and two‐dimensional flow analyses for Newtonian fluids using both rectangular and cylindrical coordinates. For non‐Newtonian fluids a one‐dimensional rectangular analysis was developed using the power law model.