Surface Waves on a Semi-toroidal Water Ring

Details Surface Waves on a Semi-toroidal Water Ring Surface Waves on a Semi-toroidal Water Ring

2006-09-03

arxiv.org/abs/physics/0609024v2

Phys. Fluids 19, 058105 (2007)

Physics

Fluid Dynamics

Scientific paper

10.1063/1.2731808

We study the dynamics of surface waves on a semi-toroidal ring of water that is excited by vertical vibration. We create this specific fluid volume by patterning a glass plate with a hydrophobic coating, which confines the fluid to a precise geometric region. To excite the system, the supporting plate is vibrated up and down, thus accelerating and decelerating the fluid ring along its toroidal axis. When the driving acceleration is sufficiently high, the surface develops a standing wave, and at yet larger accelerations, a traveling wave emerges. We also explore frequency dependencies and other geometric shapes of confinement.

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