Stability of Magnetically Levitated Liquid Bridges of Arbitrary Volume Subjected to Axial and Lateral Gravity

Mahajan, Milind P.; Zhang, Shiyong; Tsige, Mesfin; Taylor, P. L.; Rosenblatt, Charles

doi:10.1006/jcis.1999.6175

Cited by 31 publications

(7 citation statements)

References 13 publications

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“…Gravity was compensated by magnetic fields [21]. Liquid bridges were stabilized under axial and radial electric fields for both dielectric [22] and conducting [23] liquids.…”

Section: Laser-sustained Liquid Columnsmentioning

confidence: 99%

Opto-hydrodynamic instability of fluid interfaces

et al. 2005

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The bending of fluid interfaces by the optical radiation pressure is now recognized as an appealing contactless tool to probe microscopic surface properties of soft materials. However, as the radiation pressure is intrinsically weak (typically of the order of a few Pascal), investigations are often limited to the regime of weak deformations. Non-linear behaviors can nevertheless be investigated using very soft fluid interfaces. Either a large stable tether is formed, or else a break-up of the interface occurs above a well-defined beam power threshold, depending on the direction of the beam propagation. This asymmetry originates from the occurrence of total reflection condition of light at deformed interface. Interface instability results in the formation of a stationary beam-centered liquid micro-jet that emits droplets. Radiation-induced jetting can also lead to giant tunable liquid columns with aspect ratio up to 100, i.e. well beyond the fundamental Rayleigh-Plateau limitation. Consequently, the applications range of the opto-hydrodynamic interface instability is wide, going from adaptative micro-optics (lensing and light guiding by the induced columns) to micro-fluidics and microspraying, as fluid transfer is optically monitored and directed in three dimensions.

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“…Gravity was compensated by magnetic fields [21]. Liquid bridges were stabilized under axial and radial electric fields for both dielectric [22] and conducting [23] liquids.…”

Section: Laser-sustained Liquid Columnsmentioning

confidence: 99%

Opto-hydrodynamic instability of fluid interfaces

et al. 2005

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“…In the presence of gravity, the rupture of the liquid columns occurs for even smaller values of Λ. Over the years, several methods have been developed to achieve aspect ratios Λ > π, for example, by compensating for gravity with magnetic (Mahajan et al, 1999) and electric fields (Marr-Lyon et al, 2000;Raco, 1968;Gonzalez et al, 1989;Burcham and Saville, 2000) in dielectric and conducting liquids. Optical radiation pressure (Casner and Delville, 2004;Schroll et al, 2008) was also demonstrated to form liquid bridges; however, these bridges were created under very special conditions.…”

Section: Introductionmentioning

confidence: 99%

Breaking the Rayleigh-Plateau Instability Limit Using Thermocavitation Within a Droplet

et al. 2013

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We report on the generation of liquid columns that extend far beyond the traditional Rayleigh-Plateau instability onset. The columns are driven by the acoustic pressure wave emitted after bubble collapse. A high-speed video imaging device, which records images at a rate of up to 10 5 fps, was employed to follow their dynamics. These bubbles, commonly termed thermocavitation bubbles, are generated by focusing a midpower (275 mW) continuous wavelength laser into a highly absorbing liquid droplet. A simple model of the propagation of the pressure wavefront emitted after the bubble collapse shows that focusing the pressure wave at the liquid-air interface drives the evolution of the liquid columns. Control over the aspect ratio of the liquid column is realized by adjusting the cavitation bubble's size, beam focus position, and droplet volume.

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“…An asymptotic study on the influence of non-circular disks on the stability limit of cylindrical volume liquid bridges has been published recently [24]. In addition, a fairly significant number of papers dealing with the application of either flow stabilization [25,26], acoustic stabilization [27,28], electric field stabilization [29][30][31][32][33] or magnetic field stabilization [34,35] have been published.…”

Section: Introductionmentioning

confidence: 99%

On the breaking of long, axisymmetric liquid bridges between unequal supporting disks at minimum volume stability limit

Meseguer

Espino

Perales

et al. 2003

European Journal of Mechanics - B/Fluids

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The stability of axisymmetric liquid bridges held between non-equal circular supporting disks, and subjected to an axial acceleration, has been analyzed both theoretically and experimentally. Some characteristics of the breaking process which takes place when the stability limit of minimum volume is reached (mainly the dependence with the disks separation of the volume of the liquid drops resulting after the liquid bridge breakage) have been theoretically studied by using standard asymptotic expansion techniques. From the analysis of the nature of the unstable equilibrium shapes of minimum volume at the stability limit it is concluded that the relative volume of the main drops resulting from the liquid bridge rupture drastically change as the disks separation grows. Theoretical predictions have been experimentally checked by working with very small size liquid bridges (supporting disks being some 1 millimeter in diameter), the agreement between theoretical predictions and experimental results being remarkable.

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Stability of Magnetically Levitated Liquid Bridges of Arbitrary Volume Subjected to Axial and Lateral Gravity

Cited by 31 publications

References 13 publications

Opto-hydrodynamic instability of fluid interfaces

Opto-hydrodynamic instability of fluid interfaces

Breaking the Rayleigh-Plateau Instability Limit Using Thermocavitation Within a Droplet

On the breaking of long, axisymmetric liquid bridges between unequal supporting disks at minimum volume stability limit

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