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SIMPLE DETERMINATION OF POWER LAW FLOW CURVES USING A PADDLE TYPE MIXER VISCOMETER
Author(s) -
CASTELLPEREZ M. ELENA,
STEFFE JAMES F.,
MOREIRA ROSANA G.
Publication year - 1991
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1991.tb00022.x
Subject(s) - viscometer , paddle , mechanics , simple shear , power law , materials science , shear rate , cylinder , calibration curve , calibration , concentric , flow (mathematics) , shear stress , shear (geology) , mechanical engineering , composite material , mathematics , viscosity , chromatography , engineering , chemistry , geometry , physics , statistics , detection limit
A simple and accurate procedure to determine the flow properties of powerlaw fluids using a paddle type mixer viscometer is described. The approach considers the mixer as analogous to a concentric cylinder system and incorporates the inclusion of end effects in modeling. The procedure significantly reduces data collection because calibration with standard fluids is not necessary to estimate average shear stress and shear rate values.