Incorporating tunability into a universal scaling framework for shear thickening

Recently, we proposed a universal scaling framework that shows shear thickening in dense suspensions is governed by the crossover between two critical points: one associated with frictionless isotropic jamming and a second corresponding to frictional shear jamming. Here, we show that orthogonal pert...

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Bibliographic Details
Published in:arXiv.org 2022-05
Main Authors: Ramaswamy, Meera, Griniasty, Itay, Sethna, James P, Chakraborty, Bulbul, Cohen, Itai
Format: Article
Language:English
Subjects:
Critical point
Jamming
Perturbation
Scaling
Shear
Shear thickening (liquids)
Strain rate
Thickening
Online Access:Get full text
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Summary:Recently, we proposed a universal scaling framework that shows shear thickening in dense suspensions is governed by the crossover between two critical points: one associated with frictionless isotropic jamming and a second corresponding to frictional shear jamming. Here, we show that orthogonal perturbations to the flows, an effective method for tuning shear thickening, can also be folded into this universal scaling framework. Specifically, we show that the effect of adding in orthogonal shear perturbations (OSP) can be incorporated by simply altering the scaling variable to include a multiplicative term that decreases with the normalized OSP strain rate. These results demonstrate the broad applicability of our scaling framework, and illustrate how it can be modified to incorporate other complex flow fields.
ISSN:2331-8422