Experimental observation of shear thickening oscillation

Abstract

We report experimental observation of the shear thickening oscillation, i.e. the spontaneous macroscopic oscillation in the shear flow of severe shear thickening fluid. The shear thickening oscillation is caused by the interplay between the fluid dynamics and the shear thickening, and has been predicted theoretically by the present authors using a phenomenological fluid dynamics model for the dilatant fluid, but never been reported experimentally. Using a density-matched starch-water mixture, in the cylindrical shear flow of a few centimeters flow width, we observed strong vibrations of the frequency around 20 Hz, which is consistent with our theoretical prediction.

4pages, 5 figures

References in corpus (4)

• Shear thickening of cornstarch suspensions as a re-entrant jamming transition
• Shear thickening and jamming in densely packed suspensions of different particle shapes
• Shear zones and wall slip in the capillary flow of concentrated colloidal suspensions
• Fluid dynamics of dilatant fluid

Cited by in corpus (11)

• Shear thickening in concentrated suspensions: phenomenology, mechanisms, and relations to jamming
• Macroscopic Discontinuous Shear Thickening vs Local Shear Jamming in Cornstarch
• Localized Transient Jamming in Discontinuous Shear Thickening
• Uncovering instabilities in the spatiotemporal dynamics of a shear-thickening cornstarch suspension
• Kinetic theory of shear thickening for a moderately dense gas-solid suspension: from discontinuous thickening to continuous thickening
• Structure of propagating high stress fronts in a shear thickening suspension
• Competing Time Scales Lead to Oscillations in Shear-Thickening Suspensions
• Negative pressure in shear thickening band of a dilatant fluid
• Kinetic theory of discontinuous shear thickening
• Kinetic theory of discontinuous shear thickening for a dilute gas-solid suspension
• Wall slip and bulk flow heterogeneity in a sludge under shear