Viscoelastic subdiffusive flows : theory and computation / Helen Wilson, Sarthok Sircar, Priyanka Shukla
Contributor(s): Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Fluid mechanics and its applications ; volume 138Publisher: Singapore : Springer, 2024Copyright date: © 2024Description: 1 Online-Ressource (XVIII, 171 Seiten)ISBN:- 9789819601356
- 620.19 23
Contents:
Summary: This book discusses the dynamical and rheological properties of high molecular weight entangled polymer melts, commonly known as viscoelastic subdiffusive fluids. Unlike dilute liquids, these materials exhibit molecular transport within a sublinear regime, meaning the timescale of diffusive transport is sublinear. The text emphasizes the potential of fractional calculus in modeling these fluids and introduces a novel fractional model to investigate regions of spatiotemporal instability in channel flows. At the microscale, the entanglement of polymer chains leads to localized, non-homogeneous regions with increased viscosity, which manifest as spatiotemporal macrostructures at the macroscale. To capture these macrostructures within the flow, direct numerical simulations are employed using a newly developed, physically realizable structure tensor, contributing to a deeper understanding of this complex class of fluids.PPN: PPN: 1913643077Package identifier: Produktsigel: ZDB-2-SEB | ZDB-2-PHA | ZDB-2-SXP
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