Volume entrained in the wake of a disk intruding into an oil-water interface

@inproceedings{Peters2016VolumeEI,
  title={Volume entrained in the wake of a disk intruding into an oil-water interface},
  author={Ivo R. Peters and Matteo Madonia and Detlef Lohse and Devaraj van der Meer},
  year={2016}
}
An object moving through a plane interface into a fluid deforms the interface in such a way that fluid from one side of the interface is entrained into the other side, a phenomenon known as Darwin's drift. We investigate this phenomenon experimentally using a disk which is started exactly at the interface of two immiscible fluids, namely, oil and water. First, we observe that due to the density difference between the two fluids the deformation of the interface is influenced by gravity and show… 

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References

SHOWING 1-10 OF 26 REFERENCES

Compressible air flow through a collapsing liquid cavity

We present a multiscale approach to simulate the impact of a solid object on a liquid surface: upon impact a thin liquid sheet is thrown upwards all around the rim of the impactor while in its wake a

Inertial dynamics of air bubbles crossing a horizontal fluid–fluid interface

Abstract The dynamics of isolated air bubbles crossing the horizontal interface separating two Newtonian immiscible liquids initially at rest are studied both experimentally and computationally.

Controlled impact of a disk on a water surface: cavity dynamics

In this paper we study the transient surface cavity which is created by the controlled impact of a disk of radius h0 on a water surface at Froude numbers below 200. The dynamics of the transient free

The flow into an expanding spherical vortex

  • J. Turner
  • Physics, Environmental Science
    Journal of Fluid Mechanics
  • 1964
A kinematic model of the flow around and into a buoyant ‘thermal’ is discussed in some detail, and compared with existing laboratory observations. The basic assumption is that the flow is

Note on hydrodynamics

  • C. Darwin
  • Physics
    Mathematical Proceedings of the Cambridge Philosophical Society
  • 1953
Abstract A study is made of the actual trajectories of fluid particles in certain motions of classical hydrodynamics. When a solid body moves through an incompressible fluid, it induces a drift in

Note on the induced Lagrangian drift and added-mass of a vortex

  • J. Dabiri
  • Physics, Engineering
    Journal of Fluid Mechanics
  • 2006
Darwin (1953) introduced a simple heuristic that relates the Lagrangian fluid drift induced by a solid body propagating in irrotational flow to its virtual- or added-mass. The force required to

High-speed jet formation after solid object impact.

This work shows how the well-known theory of a collapsing void can be continued beyond pinch-off to obtain a new and quantitative model for jet formation which agrees well with numerical and experimental data.

Giant bubble pinch-off.

It is shown through high-speed imaging and boundary integral simulations that the inverse problem, the pinch-off of an air bubble in water, is not self-similar in a strict sense: A disk is quickly pulled through a water surface, leading to a giant, cylindrical void which after collapse creates an upward and a downward jet.

Generation and breakup of Worthington jets after cavity collapse. Part 1. Jet formation

At the beginning of the last century Worthington and Cole discovered that the high-speed jets ejected after the impact of an axisymmetric solid on a liquid surface are intimately related to the

Drift, partial drift and Darwin's proposition

A body moves at uniform speed in an unbounded inviscid fluid. Initially, the body is infinitely far upstream of an infinite plane of marked fluid; later, the body moves through and distorts the plane