Collapse of Non-Axisymmetric Cavities

Details Collapse of Non-Axisymmetric Cavities Collapse of Non-Axisymmetric Cavities

2009-10-14

arxiv.org/abs/0910.2664v1

Physics

Fluid Dynamics

Scientific paper

A round disk with a harmonic disturbance impacts on a water surface and creates a non-axisymmetric cavity which collapses under the influence of hydrostatic pressure. We use disks deformed with mode m=2 to m=6. For all mode numbers we find clear evidence for a phase inversion of the cavity wall during the collapse. We present a fluid dynamics video showing high speed imaging of different modes, pointing out the characteristic features during collapse.

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