Simultaneous concentration and velocity maps in particle suspensions under shear from rheo-ultrasonic imaging - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Phys.Rev.Applied Année : 2017

Simultaneous concentration and velocity maps in particle suspensions under shear from rheo-ultrasonic imaging

Résumé

We extend a previously developed ultrafast ultrasonic technique [T. Gallot , Rev. Sci. Instrum. 84, 045107 (2013)RSINAK0034-674810.1063/1.4801462] to concentration-field measurements in non-Brownian particle suspensions under shear. The technique provides access to time-resolved concentration maps within the gap of a Taylor-Couette cell simultaneously to local velocity measurements and standard rheological characterization. Benchmark experiments in homogeneous particle suspensions are used to calibrate the system. We then image heterogeneous concentration fields that result from centrifugation effects, from the classical Taylor-Couette instability, and from sedimentation or shear-induced resuspension.

Dates et versions

hal-01582704 , version 1 (06-09-2017)

Identifiants

Citer

Brice Saint-Michel, Hugues Bodiguel, Steven Meeker, Sébastien Manneville. Simultaneous concentration and velocity maps in particle suspensions under shear from rheo-ultrasonic imaging. Phys.Rev.Applied, 2017, 8 (1), pp.014023. ⟨10.1103/PhysRevApplied.8.014023⟩. ⟨hal-01582704⟩
69 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More