TIME-DEPENDENT RESPONSE IN THE FLOW BETWEEN ECCENTRIC ROTATING DISKS.

S. Jack Willey; W. M. Davis; C. W. Macosko; Charles Goldstein

doi:10.1122/1.549345

TIME-DEPENDENT RESPONSE IN THE FLOW BETWEEN ECCENTRIC ROTATING DISKS.

S. Jack Willey, W. M. Davis, C. W. Macosko, Charles Goldstein

Chemical Engineering and Materials Science

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Abstract

The stress-growth phenomenon in the eccentric rotating disk (ERD) geometry is analyzed using a linearized Bird-Carreau integral model. Good agreement is found between experimental observations and predicted responses for a low-density PE melt. Transient stress response is reported as time- and frequency-dependent moduli. In start-up, the approach of the viscous and elastic stresses to their steady-state values at angular velocity is found to be directly related to the decay of the storage modulus in stress relaxation after steady rotation.

Original language	English (US)
Pages (from-to)	515-526
Number of pages	12
Journal	Trans Soc Rheol
Volume	18
Issue number	4
DOIs	https://doi.org/10.1122/1.549345
State	Published - Jan 1 1974

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title = "TIME-DEPENDENT RESPONSE IN THE FLOW BETWEEN ECCENTRIC ROTATING DISKS.",

abstract = "The stress-growth phenomenon in the eccentric rotating disk (ERD) geometry is analyzed using a linearized Bird-Carreau integral model. Good agreement is found between experimental observations and predicted responses for a low-density PE melt. Transient stress response is reported as time- and frequency-dependent moduli. In start-up, the approach of the viscous and elastic stresses to their steady-state values at angular velocity is found to be directly related to the decay of the storage modulus in stress relaxation after steady rotation.",

author = "Willey, {S. Jack} and Davis, {W. M.} and Macosko, {C. W.} and Charles Goldstein",

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AU - Macosko, C. W.

AU - Goldstein, Charles

PY - 1974/1/1

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N2 - The stress-growth phenomenon in the eccentric rotating disk (ERD) geometry is analyzed using a linearized Bird-Carreau integral model. Good agreement is found between experimental observations and predicted responses for a low-density PE melt. Transient stress response is reported as time- and frequency-dependent moduli. In start-up, the approach of the viscous and elastic stresses to their steady-state values at angular velocity is found to be directly related to the decay of the storage modulus in stress relaxation after steady rotation.

AB - The stress-growth phenomenon in the eccentric rotating disk (ERD) geometry is analyzed using a linearized Bird-Carreau integral model. Good agreement is found between experimental observations and predicted responses for a low-density PE melt. Transient stress response is reported as time- and frequency-dependent moduli. In start-up, the approach of the viscous and elastic stresses to their steady-state values at angular velocity is found to be directly related to the decay of the storage modulus in stress relaxation after steady rotation.

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TIME-DEPENDENT RESPONSE IN THE FLOW BETWEEN ECCENTRIC ROTATING DISKS.

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