Asymmetry-induced particle drift in a rotating flow

J.J. Bluemink; E.A. van Nierop; S. Luther; N.G. Deen; J. Magnaudet; A. Prosperetti; D. Lohse

doi:10.1063/1.1978921

Asymmetry-induced particle drift in a rotating flow

J.J. Bluemink, E.A. van Nierop, S. Luther, N.G. Deen, J. Magnaudet, A. Prosperetti, D. Lohse

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Abstract

We report on an intriguing phenomenon taking place in a liquid rotating around a fixed horizontal axis. Under suitable conditions, bubbles and particles are observed to drift along the axis of rotation maintaining a constant distance from it and a constant angle of elevation above the horizontal. Absence of fore-aft symmetry of the bubble or particle shape is a prerequisite for this phenomenon. For bubbles, this requires a volume sufficiently large for surface-tension effects to be small and large deformations to be possible. Particle image velocimetry and flow visualization suggest that the wake does not play a role. The dependence on bubble radius, particle shape, liquid viscosity, and speed of rotation is investigated.

Original language	English
Article number	072106
Number of pages	5
Journal	Physics of fluids
Volume	17
Issue number	7
DOIs	https://doi.org/10.1063/1.1978921
Publication status	Published - 2005

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title = "Asymmetry-induced particle drift in a rotating flow",

abstract = "We report on an intriguing phenomenon taking place in a liquid rotating around a fixed horizontal axis. Under suitable conditions, bubbles and particles are observed to drift along the axis of rotation maintaining a constant distance from it and a constant angle of elevation above the horizontal. Absence of fore-aft symmetry of the bubble or particle shape is a prerequisite for this phenomenon. For bubbles, this requires a volume sufficiently large for surface-tension effects to be small and large deformations to be possible. Particle image velocimetry and flow visualization suggest that the wake does not play a role. The dependence on bubble radius, particle shape, liquid viscosity, and speed of rotation is investigated.",

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AU - Bluemink, J.J.

AU - van Nierop, E.A.

AU - Luther, S.

AU - Deen, N.G.

AU - Magnaudet, J.

AU - Prosperetti, A.

AU - Lohse, D.

PY - 2005

Y1 - 2005

N2 - We report on an intriguing phenomenon taking place in a liquid rotating around a fixed horizontal axis. Under suitable conditions, bubbles and particles are observed to drift along the axis of rotation maintaining a constant distance from it and a constant angle of elevation above the horizontal. Absence of fore-aft symmetry of the bubble or particle shape is a prerequisite for this phenomenon. For bubbles, this requires a volume sufficiently large for surface-tension effects to be small and large deformations to be possible. Particle image velocimetry and flow visualization suggest that the wake does not play a role. The dependence on bubble radius, particle shape, liquid viscosity, and speed of rotation is investigated.

AB - We report on an intriguing phenomenon taking place in a liquid rotating around a fixed horizontal axis. Under suitable conditions, bubbles and particles are observed to drift along the axis of rotation maintaining a constant distance from it and a constant angle of elevation above the horizontal. Absence of fore-aft symmetry of the bubble or particle shape is a prerequisite for this phenomenon. For bubbles, this requires a volume sufficiently large for surface-tension effects to be small and large deformations to be possible. Particle image velocimetry and flow visualization suggest that the wake does not play a role. The dependence on bubble radius, particle shape, liquid viscosity, and speed of rotation is investigated.

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DO - 10.1063/1.1978921

M3 - Article

SN - 1070-6631

VL - 17

JO - Physics of fluids

JF - Physics of fluids

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M1 - 072106

ER -

Asymmetry-induced particle drift in a rotating flow

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