Macroscopic vs. local rheology of yield stress fluids

By P. Coussot, Laurent Tocquer, C. Lanos, G. Ovarlez. 2009

207 citations recorded by the source corpus.

Subfields: Fluid Flow and Transfer Processes, Food Science, Pulmonary and Respiratory Medicine

View Paper: https://www.semanticscholar.org/paper/1824c1eef93b8bcfa313a70b1ab48f174a4f7ff2

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In Fluid Flow and Transfer Processes

In Food Science

In Pulmonary and Respiratory Medicine

Citations in the corpus

Phenomenology and physical origin of shear localization and shear banding in complex fluids (2009, background): “Finally it was recently suggested (Coussot et al. 2009) that two types of jammed materials can be distinguished: systems with mostly repulsive interactions between the elements and systems with mostly attractive interactions between the elements.”
Describing and prescribing the constitutive response of yield stress fluids using large amplitude oscillatory shear stress (LAOStress) (2013, methodology): “The Herschel-Bulkley model is well known to predict the steady state flow behavior of these types of microgels above the yield stress σy, and has been used in a large number of previous studies (Piau, 2007; Oppong and de Bruyn, 2007; Coussot et al., 2009).”
Yield stress fluid flows: A review of experimental data (2014, result): “Figure 3), deduced from local stress and shear rate measurements under different flow conditions (at different rotation velocities of the inner cylinder) was obtained and was shown to be in agreement with data obtained from conventional rheometrical tests with a cone and plate [59].”
The solid–fluid transition in a yield stress shear thinning physical gel (2009, background): “... 0.2 and 2 s. For each up–down stress ramp, 1,000 stress values have been explored ranging between 0.1 and 20 Pa. We emphasize here that a true steady state of deformation can only be inferred in the asymptotic limit t0 →∞ , unlike in previous studies concerning Carbopol gels, where a steady stat”
Rheological Characterization of Carbopol® Dispersions in Water and in Water/Glycerol Solutions (2019, background): “Carbopol dispersion is usually seen as simple model yield stress fluids [32,33].”
Refractive-index and density matching in concentrated particle suspensions: a review (2011, background): “This result may corroborate the idea that there is of a critical shear rate _cc below which no steady flow is possible, a scenario proposed by Coussot et al. (2009).”
Yielding to Stress: Recent Developments in Viscoplastic Fluid Mechanics (2014, methodology): “In steady-state shear flow, several materials have behavior close to the paradigm of the HerschelBulkley model: microgel suspensions (Coussot et al. 2009) (Figure 2a), colloidal glasses (Besseling et al. 2007), and foams and concentrated emulsions (Ovarlez et al. 2013) (see also Section 3.3).”