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Q8/ Non-Newtonian fluid characterization. A non-Newtonian liquid is tested by placing it between the two concentric cylinders of a viscometer. Since the gap h between the two surfaces is very small, they may be approximated by two planes as shown in Fig.3, one surface being stationary and the other moving. The instrument essentially measures the shear stresses 7 = (Tx)y-h needed to move the upper plate at a variety of steady velocities V. Fig.3 Opposed surfaces of a viscometer. УА Explain in detail how you would discover the model to which the liquid conforms-it may be either a power-law fluid or a Bingham plastic and how you could determine from the data the two parameters (such as к and n, or 70 and n) for either model. Use the symbol s for the rate of strain dvx/dy.

Q8/ Non-Newtonian fluid characterization. A non-Newtonian liquid is tested by placing it between the two concentric cylinders of a viscometer. Since the gap h between the two surfaces is very small, they may be approximated by two planes as shown in Fig.3, one surface being stationary and the other moving. The instrument essentially measures the shear stresses 7 = (Tx)y-h needed to move the upper plate at a variety of steady velocities V. Fig.3 Opposed surfaces of a viscometer. УА Explain in detail how you would discover the model to which the liquid conforms-it may be either a power-law fluid or a Bingham plastic and how you could determine from the data the two parameters (such as к and n, or 70 and n) for either model. Use the symbol s for the rate of strain dvx/dy.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Q8/ Non-Newtonian fluid characterization. A non-Newtonian liquid is tested by placing it between the two concentric cylinders of a viscometer. Since the gap h between the two surfaces is very small, they may be approximated by two planes as shown in Fig.3, one surface being stationary and the other moving. The instrument essentially measures the shear stresses 7 = (Tx)y-h needed to move the upper plate at a variety of steady velocities V. Fig.3 Opposed surfaces of a viscometer. УА Explain in detail how you would discover the model to which the liquid conforms-it may be either a power-law fluid or a Bingham plastic and how you could determine from the data the two parameters (such as к and n, or 70 and n) for either model. Use the symbol s for the rate of strain dvx/dy.
Transcribed Image Text:Q8/ Non-Newtonian fluid characterization. A non-Newtonian liquid is tested by placing it between the two concentric cylinders of a viscometer. Since the gap h between the two surfaces is very small, they may be approximated by two planes as shown in Fig.3, one surface being stationary and the other moving. The instrument essentially measures the shear stresses 7 = (Tx)y-h needed to move the upper plate at a variety of steady velocities V. Fig.3 Opposed surfaces of a viscometer. УА Explain in detail how you would discover the model to which the liquid conforms-it may be either a power-law fluid or a Bingham plastic and how you could determine from the data the two parameters (such as к and n, or 70 and n) for either model. Use the symbol s for the rate of strain dvx/dy.
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