Fluid Dynamical Studies of Free Liquids Using Acoustic Levitation

Trinh, Bach Tuyet

doi:10.1109/ultsym.1983.198242

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P Lee and T G Wang1

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1988

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(2 citation statements)

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“…In one of the experiments (Trinh 1983) the liquid shell is leviated acoustically against gravity without breaking. (Note that without support the shell undergoes a free fall and experiences a zero-gravity condition.)…”

Section: P Lee and T G Wangmentioning

confidence: 99%

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The centring dynamics of a thin liquid shell in capillary oscillations

Lee

Wang

1988

J. Fluid Mech.

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The physical mechanism governing the centring of a hollow liquid shell in capillary oscillations, which has been observed in experiments, is investigated theoretically. First, the shell is assumed to be inviscid and to have a thickness that is much less than its spherical radius. A system of one-dimensional nonlinear equations of motion is derived using a thin-sheet model. From a numerical study the nonlinear effects of the wave are found to cause the core to oscillate slowly relative to the shell while the centre of mass of the whole system remains stationary. The effects of small viscosity are then considered in an approximation. Finally the strength of the centring mechanism is compared with that of the decentring effect due to buoyancy. The findings are consistent with the limited experimental information available.

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Section: P Lee and T G Wangmentioning

confidence: 99%

“…Free-falling hollow liquid shells, about 1 mm in radius, produced by annular jet instability, tended to remain concentric . I n an acoustic levitation experiment (Trinh 1983), the hollow shell produced by introduction of air into a 1 mm drop was found to resist breakup when oscillation was induced.…”

Section: Introductionmentioning

confidence: 99%

The centring dynamics of a thin liquid shell in capillary oscillations

Lee

Wang

1988

J. Fluid Mech.

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Fluid Dynamical Studies of Free Liquids Using Acoustic Levitation

Cited by 1 publication

References 4 publications

The centring dynamics of a thin liquid shell in capillary oscillations

The centring dynamics of a thin liquid shell in capillary oscillations

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