Jet instability of a shear-thickening concentrated suspension

被引：1
|
作者：
Liard, Maxime [1 ,2 ]
Sato, Akihiro [1 ]
Sautel, Jeremy [1 ]
Lootens, Didier [2 ]
Hebraud, Pascal [1 ]
机构：
[1] Univ Strasbourg, IPCMS CNRS UMR 7504, 23 Rue Loess, F-67034 Strasbourg, France
[2] Sika Technol AG, Tuffenwies 16, CH-8048 Zurich, Switzerland
来源：
EUROPEAN PHYSICAL JOURNAL E | 2020年 / 43卷 / 11期
关键词：
Flowing Matter; Liquids and Complex Fluids; IMPACT-ACTIVATED SOLIDIFICATION; DENSE SUSPENSIONS; RHEOLOGY;
D O I：
10.1140/epje/i2020-11994-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
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页数：6
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