Predictions for the northern coast of the shear rheology map: XXLAOS

Research output: Contribution to journalArticle

Abstract

A new paradigm of rheological characterization, oscillatory simple shear with infinite forcing amplitudes, is introduced by Khair (J. Fluid Mech., vol. 791, 2016, R5). This pushes the technique of large-amplitude oscillatory shear (LAOS) to have two extremely large amplitudes (both strain-rate and strain), which we might call XXLAOS. Model-specific analytical predictions are derived for a suspension of nearly spherical rigid particles subject to Brownian rotational diffusion. The work illuminates a new regime of rheological characterization that may serve as a distinct proving ground for constitutive model selection and for probing the flow physics of rheologically complex fluids.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalJournal of Fluid Mechanics
Volume798
DOIs
StatePublished - Jul 10 2016

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Rheology
rheology
coasts
Coastal zones
shear
Fluids
predictions
Constitutive models
Strain rate
Physics
fluids
strain rate
physics

Keywords

  • mathematical foundations
  • rheology
  • viscoelasticity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Predictions for the northern coast of the shear rheology map : XXLAOS. / Ewoldt, Randy H.

In: Journal of Fluid Mechanics, Vol. 798, 10.07.2016, p. 1-4.

Research output: Contribution to journalArticle

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