Introduction to Polymer Rheology by Shaw Montgomery T

Author:Shaw, Montgomery T. [Shaw, Montgomery T.]
Language: eng
Format: mobi
ISBN: 9781118170205
Publisher: John Wiley and Sons
Published: 2012-01-09T16:00:00+00:00

(b) What influence would kinetic energy have on the Bagley plot and the corrected shear stress?

7–11. In the Couette fixture, the bob design featuring a cone on the bottom is very popular because if makes maximum use of the sample. What angle should the cone have so that the entire sample is subjected to the same shear rate?

7–12. One method for eliminating concerns about the contributions of top and bottom of the bob of the Couette geometry is to fill the annular gap only partially, but to different heights. If the height of the fluid along the side of the bob can be measured, what procedure should be followed to find the true shear stress in the fluid? Assume a very small gap.

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