https://doi.org/10.1140/epje/i2020-11994-3
Regular Article
Jet instability of a shear-thickening concentrated suspension
1
Université de Strasbourg, IPCMS/CNRS UMR 7504, 23 rue du Loess, 67034, Strasbourg, France
2
Sika Technology AG, Tuffenwies 16, 8048, Zürich, Switzerland
* e-mail: pascal.hebraud@ipcms.unistra.fr
Received:
23
July
2020
Accepted:
12
October
2020
Published online:
16
November
2020
We investigate the flow of a concentrated suspension of colloidal particles at deformation rates higher than the discontinuous shear-thickening transition shear rate. We show that, under its own weight, a jet of a concentrated enough colloidal suspension, simultaneously flows while it sustains tensile stress and transmits transverse waves. This results in a new flow instability of jets of shear-thickening suspensions: the jet is submitted to rapid transverse oscillations, that we characterize.
Key words: Flowing Matter: Liquids and Complex Fluids
© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2020
