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Communication Dans Un Congrès Année : 2023

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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hal-04294488 , version 1 (21-11-2023)

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Lin Qiao, Nadine Allanic, Pierre Mousseau, Yves Bereaux, Manuel Girault, et al.. A local power law versus a well-identified viscosity curve over a large shear rate range in thermorheology of polymers. ESAFORM 2023, Apr 2023, Cracovie, Poland. ⟨10.21741/9781644902479-207⟩. ⟨hal-04294488⟩
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