A local power law versus a well-identified viscosity curve over a large shear rate range in thermorheology of polymers
LIN Qiao, ALLANIC Nadine, MOUSSEAU Pierre, BEREAUX Yves, GIRAULT Manuel, DETERRE Rémi
download PDFAbstract. There are always debates on the use of power law to model flows having a local zero shear rate. This paper uses an original method to define a functional shear rate range with respect to the flow condition and identify an equivalent power law from a Cross-law fluid. The numerical and experimental results are compared to show the ability of the power law to model a flow having a low-shear region.
Keywords
Pseudo-Plastic, Annular Flow, Cross Law, Viscous Dissipation, Velocity Field
Published online 4/19/2023, 10 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: LIN Qiao, ALLANIC Nadine, MOUSSEAU Pierre, BEREAUX Yves, GIRAULT Manuel, DETERRE Rémi, A local power law versus a well-identified viscosity curve over a large shear rate range in thermorheology of polymers, Materials Research Proceedings, Vol. 28, pp 1917-1926, 2023
DOI: https://doi.org/10.21741/9781644902479-207
The article was published as article 207 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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