The interface migration in shear-banded micellar solutions

García-Sandoval, J.P.; Bautista, F.; Puig, J. E.; Manero, Ο.

doi:10.1007/s00397-017-1031-2

Cited by 4 publications

(1 citation statement)

References 20 publications

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“…In some cases (e.g., Fardin et al [21]) the observed length scale ℓ does not seem to have a unique value but depends on the average imposed shear rates or the width of the shear band. This behavior is not captured by phenomenological models like the d-JS or d-Giesekus models, but conceivably could be taken into account by more complex fluidity models where the relaxation time has more complex dynamics [73]; or with non-linear diffusive terms in which D is replace by a function D(κ, ).…”

Section: Brief Summarymentioning

confidence: 99%

Non-local Effects in Shear Banding of Polymeric Flows

Lerouge

Olmsted

2020

Front. Phys.

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Many fluids undergo shear banding, in which two states of different apparent viscosity coexist for a given shear rate (or for a given stress). In the idealized case of an infinite gap between shearing plates the selection of the conditions for shear banding has been shown to depend on the spatial structure and shape of the interface between shear bands. With the advent of microfluidic design for processing and additive manufacturing, the processing of many complex fluids often occurs in situations where this idealized limit doesn't apply, and the gap between walls, in either shearing flow or more often for pressure driven flow, is no longer "infinite" compared to the structural scales. It is increasingly clear that the effective rheology and structure of flowing fluids in these conditions requires information about the entire sample size, i.e., that the rheology is intrinsically non-local. In this review we discuss some recent attempts (both theoretical and experimental) to address non-local rheology and its implications for shear-banding flows of polymeric fluids. This manifests itself in rheology extracted from velocity profiles, as well as the dependence of shear-banding conditions on the position of the interface between shear bands, as well as the system size.

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Section: Brief Summarymentioning

confidence: 99%

Non-local Effects in Shear Banding of Polymeric Flows

Lerouge

Olmsted

2020

Front. Phys.

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Compatibility of the generalized BMP model and the two-fluid Langevin formulations

et al. 2021

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Elastic instabilities in pressure-driven channel flow of thixotropic-viscoelasto-plastic fluids

Castillo

Wilson

2018

Journal of Non-Newtonian Fluid Mechanics

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights • We use the Bautista-Manero-Puig model to investigate channel ow instabilities. • Instability is seen when viscoelastic effects dominate; thixotropy is stabilising.

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The interface migration in shear-banded micellar solutions

Cited by 4 publications

References 20 publications

Non-local Effects in Shear Banding of Polymeric Flows

Non-local Effects in Shear Banding of Polymeric Flows

Compatibility of the generalized BMP model and the two-fluid Langevin formulations

Elastic instabilities in pressure-driven channel flow of thixotropic-viscoelasto-plastic fluids

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