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Performance of the Helical Screw Rheometer for Fluid Food Suspensions
Author(s) -
TAMURA MAGDALENA S.,
SHOEMAKER CHARLES F.,
HENDERSON JERALD M.
Publication year - 1993
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1993.tb06140.x
Subject(s) - rheometer , rheology , materials science , cylinder , newtonian fluid , non newtonian fluid , viscosity , power law fluid , mechanics , composite material , physics , mechanical engineering , engineering
The Helical Screw Rheometer (HSR) consists of a helical screw enclosed in a tight fitting cylinder. When the screw is rotated with the system closed it generates a linearly increasing pressure differential along the axis of the screw. The pressure is proportional to the viscosity of a Newtonian fluid. Viscosity of standard Newtonian fluids measured using the HSR correlated well with measurements on a rotational rheometer with cone and plate fixtures. HSR data on non‐Newtonian suspensions analyzed with a power law model (σ= mγ a ) did not agree as well with results from cone and plate fiiures on the rotational rheometer.