Presented by:
Luke Bennetts
Date:
Tuesday 19th September 2017 - 15:00 to 16:30
Venue:
INI Seminar Room 2
Abstract:
Collisions
between two thin floating disks forced by regular water waves are studied for a
range of wave amplitudes and lengths, using laboratory wave basin experiments
and a mathematical model. Three collision regimes are identified from the
experiments in terms of collision frequency and strength, and the collisions
are shown to be caused by drift for short incident wavelengths and relative
surge motion between the disks for longer incident waves. The model is based on
slope-sliding theory for the wave-induced disk motions, and rigid-body
collisions. It is shown to predict collision frequencies and velocities
accurately for long incident wavelengths. Incorporating drift and wave
scattering forces into the model is shown to capture the collision behaviours
for short incident wavelengths.
The video for this talk should appear here if JavaScript is enabled.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.