A local power law versus a well-identified viscosity curve over a large shear rate range in thermorheology of polymers
Résumé
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.
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