2016
DOI: 10.1017/jfm.2016.229
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Cavitation structures formed during the collision of a sphere with an ultra-viscous wetted surface

Abstract: We investigate the inception of cavitation and resulting structures when a sphere collides with a solid surface covered with a layer of non-Newtonian liquid having a kinematic viscosity of up to ν 0 = 20 000 000 cSt. We show the existence of shear-stress-induced cavitation during sphere approach towards the base wall (i.e. the pressurization stage) in ultra-viscous films using a synchronized dual-view high-speed imaging system. For the experimental parameters employed, liquids having viscoelastic properties of… Show more

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Cited by 10 publications
(1 citation statement)
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“…Under the effect of bubble internal circulation, particles will be transported to the bubble surface and removed by the liquid film. Great progress has been made in understanding the bubble–particle contact behavior, but the major challenge remains with the transport mechanisms of particles inside the bubble. Specifically, the internal transport mechanisms of micron particles are still not fully understood, ,, and hence, a thorough understanding of complicated bubble dynamics and the coupling of mechanisms that contribute to particle motion is essential to develop the large-scale and high-efficiency bubble column scrubber.…”
Section: Introductionmentioning
confidence: 99%
“…Under the effect of bubble internal circulation, particles will be transported to the bubble surface and removed by the liquid film. Great progress has been made in understanding the bubble–particle contact behavior, but the major challenge remains with the transport mechanisms of particles inside the bubble. Specifically, the internal transport mechanisms of micron particles are still not fully understood, ,, and hence, a thorough understanding of complicated bubble dynamics and the coupling of mechanisms that contribute to particle motion is essential to develop the large-scale and high-efficiency bubble column scrubber.…”
Section: Introductionmentioning
confidence: 99%