Coupled vibrations of a meniscus and liquid films

Seiwert, Jacopo; Pierre, Juliette; Dollet, Benjamin

doi:10.1017/jfm.2015.674

Cited by 10 publications

(14 citation statements)

References 35 publications

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“…More recently, to fill the gap between a single isolated film and a 3D opaque foam, experiments have been performed on system which can be considered as the elementary building blocks of a foam, meaning a few films connected to one (or a few) meniscus [13][14][15][16][17][18][19][20]. The main goal is then to identify non-trivial features occurring at the connections between free films and menisci.…”

Section: Introductionmentioning

confidence: 99%

Rayleigh-Taylor-like instability in a foam film

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Rayleigh-Taylor-like instability in a foam film

et al. 2019

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“…These studies differ by the geometry investigated and by the amplitude of the forcing. Seiwert et al investigate the case of an annular PB bounding a horizontal soap film suspended to two catenary films [7]. The free and forced oscillations of the PB and the connected soap film display a coupled dynamics where the displaced air plays a crucial role.…”

Section: Introductionmentioning

confidence: 99%

Propagation of a transverse wave on a foam microchannel

Derec¹,

Leroy²,

Kaurin³

et al. 2015

EPL

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In a foam, soap films meet by three in the liquid micro channels, called Plateau borders, which contain most of the liquid of the foam. We investigated here the transverse vibration of a single Plateau border isolated on a rigid frame. We measured and we computed numerically and analytically the propagation of a transverse pulse along the channel in the 20-2000 Hz frequency range. The dispersion relation shows different scaling regimes, which provide information on the role of inertial, elastic and viscous forces acting on the Plateau border: at low frequency, the dispersion relation is dominated by the vibration of the deformed soap films and the displacement of the surrounding air, and the Plateau border behaves as the free border of a soap film. The inertia of the liquid in the Plateau border plays a role at high frequency, the critical frequency separating the low frequency and the high frequency regimes being a decreasing function of the width R of the Plateau border.

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“…The film inflates when the laser is on and deflates when off, like in a breathing mode. It is different from the asymmetric modes (also called bending mode) usually seen in soap films under acoustic excitation where both interfaces are bended in an asymmetric way [14][15][16]. Here, we can't excite bending modes, we only excite breathing modes which may have more practical applications.…”

Section: Discussionmentioning

confidence: 88%

Towards an optofluidic pump?

Émile¹,

Émile²

2016

Optofluidics, Microfluidics and Nanofluidics

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Most of the vibrating mechanisms of optofluidicsystems are based on local heating of membranes that in-duces liquid flow. We report here a new type of diaphragmpump in a liquid film based on the optical radiation pres-sure force. We modulate a low power laser that gener-ates, at resonance, a symmetric vibration of a free standingsoap film. The film lifetime strongly varies from 56 s at lowpower (2 mW) to 2 s at higher power (70 mW). Since thelaser beam only acts mechanically on the interfaces, sucha pump could be easily implemented on delicate micro-equipment on chips or in biological systems

show abstract

Coupled vibrations of a meniscus and liquid films

Cited by 10 publications

References 35 publications

Rayleigh-Taylor-like instability in a foam film

Rayleigh-Taylor-like instability in a foam film

Propagation of a transverse wave on a foam microchannel

Towards an optofluidic pump?

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