Onset of flow in a vibrated thin viscoplastic layer
نویسندگان
چکیده
منابع مشابه
Elastic convection in vibrated viscoplastic fluids.
We observe a new type of behavior in a shear-thinning yield stress fluid: freestanding convection rolls driven by vertical oscillation. The convection occurs without the constraint of container boundaries, yet the diameter of the rolls is spontaneously selected for a wide range of parameters. The transition to the convecting state occurs without hysteresis when the amplitude of the plate accele...
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Velocity measurements are presented for a vertically shaken granular layer. For frequencies around 110 Hz and accelerations larger than gravity, the layer develops a convective motion in the form of one or more rolls. The velocity of the grains near the wall has been measured. It grows linearly with the acceleration, then the growth rate slows down. A rescaling with the amplitude of the wall ve...
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ژورنال
عنوان ژورنال: Journal of Non-Newtonian Fluid Mechanics
سال: 2019
ISSN: 0377-0257
DOI: 10.1016/j.jnnfm.2019.02.009