Vibration-Induced Attraction of a Particle Towards a Wall in Microgravity—The Mechanism of Attraction Force

Saadatmand, Mehrrad; Kawaji, Masahiro; Hu, Hsou Mei

doi:10.1007/s12217-011-9291-4

Cited by 14 publications

(5 citation statements)

References 24 publications

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“…Steady forces between particles or bubbles and a tangentially vibrating surface were also reported in the context of experiments under conditions of microgravity [25][26][27]. Such forces initiate a convective flow, which may disturb the experiment (often crystallization).…”

Section: Introductionmentioning

confidence: 90%

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Attractive forces on hard and soft colloidal objects located close to the surface of an acoustic-thickness shear resonator

Langhoff

Johannsmann

2013

Phys. Rev. E

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Colloidal particles located close to the surface of an acoustic thickness shear resonator feel an attractive steady force, which is induced by the high-frequency tangential motion of the resonator surface. The range of the force is about half the penetration depth of the transverse viscous wave, that is, half of the thickness of the Stokes boundary layer. For an oscillation amplitude of 10 nm and a particle radius of 100 nm, the depth of attractive potential well corresponds to about 3 times the thermal energy, k(B)T. The force therefore suffices to overcome Brownian motion.

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Section: Introductionmentioning

confidence: 90%

“…While there clearly is a connection between this work and Refs. [25][26][27], our results should not be directly applied to the configuration discussed there.…”

Section: Introductionmentioning

confidence: 99%

Attractive forces on hard and soft colloidal objects located close to the surface of an acoustic-thickness shear resonator

Langhoff

Johannsmann

2013

Phys. Rev. E

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“…In [6,7], the behaviour of a solid particle located near a solid wall of a fluid-filled container subjected to a sinusoidal vibration is investigated experimentally and theoretically. Assuming that the viscous boundary layer around the particle is thin relative to the particle radius, an inviscid fluid model is developed to predict the motion of the particle.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a bubble in oscillating viscous liquid

Lyubimova

Fomicheva

Ivantsov

2023

Phil. Trans. R. Soc. A.

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This article is devoted to the investigation of gaseous bubble dynamics in oscillating viscous liquids of different density values. The study is conducted numerically using the level-set method with a non-stationary approach. The bubble is initially located near the upper wall of the container. The effects of the inclusion and host liquid viscosities on interaction of the bubble with the wall are analysed. The calculations show that in the absence of gravity, for low-viscosity fluids the bubble is attracted to the nearest wall, which is consistent with previous analytical and experimental results. With increasing viscosity, the vibrational attraction to the wall becomes weaker and is then replaced by repulsion, which can be explained by the decelerative effect of viscosity in the boundary layer near the rigid surface, where the average flow becomes less intensive. The dependencies of the repulsion force on the parameter values are obtained by using the balance method (investigation of the gravity level needed to attain the quasi-equilibrium state at a certain distance between the bubble and the wall). The calculations show that the repulsion force grows with decreasing Reynolds number (increase of the viscosity). This article is part of the theme issue ‘New trends in pattern formation and nonlinear dynamics of extended systems’.

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“…For cylindrical bodies the vibrational lift force was studied using the same method in [4]. Because of high importance for microgravity conditions, the vibrational lift force, which acts on oscillating solid, attracts attention of scientists, which prove the existence of attraction force at relatively large distance [5,6] as well as reporting the existence of repulsion force, which manifests itself with increase of liquid viscosity [7,8]. Vibrational dynamics of spherical solids in mentioned works was studied mainly by direct numerical simulation; the list of articles could be found in [8].…”

Section: Introductionmentioning

confidence: 99%

Behavior of a Flat Solid in a Container with Liquid Subject to Large Amplitude Vibration

Козлов

Vlasova

2016

Shock and Vibration

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We experimentally study the behavior of a flat body in the oscillating container with liquid. The body density is much more than the density of liquid. The body oscillates with large amplitude under the action of inertia forces. It is found that under the vibration the body lifts up and goes to quasi-steady suspended state at some distance from the container bottom. The lift force is measured by a method of dynamic suspension of a body in the gravity field. It is found that the dimensionless repulsion lift force depends on the dimensionless amplitude of the body oscillations; it reduces with the amplitude and is in agreement with the theoretical model in the limit of small amplitude. Qualitatively new regimes of body behavior are found in the supercritical region. With an increase of the vibration intensity, the body gets a stable state in the middle of the container height and then moves on to the container ceiling.

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Vibration-Induced Attraction of a Particle Towards a Wall in Microgravity—The Mechanism of Attraction Force

Cited by 14 publications

References 24 publications

Attractive forces on hard and soft colloidal objects located close to the surface of an acoustic-thickness shear resonator

Attractive forces on hard and soft colloidal objects located close to the surface of an acoustic-thickness shear resonator

Dynamics of a bubble in oscillating viscous liquid

Behavior of a Flat Solid in a Container with Liquid Subject to Large Amplitude Vibration

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