Asymmetric bubble disconnection: persistent vibration evolves into smooth contact

Details Asymmetric bubble disconnection: persistent vibration evolves into smooth contact Asymmetric bubble disconnection: persistent vibration evolves into smooth contact

2009-02-03

arxiv.org/abs/0902.0393v2

Phys. Rev. Lett. 103, 124501 (2009)

Physics

Fluid Dynamics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.103.124501

Focusing a finite amount of energy dynamically into a vanishingly small amount of material requires that the initial condition be perfectly symmetric. In reality, imperfections are always present and cut-off the approach towards the focusing singularity. The disconnection of an underwater bubble provides a simple example of this process. An initial asymmetry in the shape of the bubble neck excites vibrations that persist over time. Often the vibrations evolve into a smooth contact that severs the neck into several lobes.

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