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A theoretical study of liquid-film spread heights in the calendering of newtonian and power law fluids

✍ Scribed by I. Brazinsky; H. F. Cosway; C. F. Valle Jr.; R. Clark Jones; V. Story

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
586 KB
Volume
14
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The relationship between spread height and upstream reservoir thickness, with power low coefficient as parameter, was obtained analytically. At all values of n studied, the value of r (ratio of spread height to nip width) increases with increasing values of H/h~o~ where H is upstream reservoir thickness and h~o~ is nip width. At higher values of H/h~o~, the curves of r, versus H/h~o~ tend to β€œflatten” out, and r approaches an asymptotic value. For example, the asymptotic value of r for Newtonian fluids (power law constant of 1) is 1.226. Asymptotic values of r increase with decreasing values of the power law constant.

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