Tag Archives: chaos

Filling a bouncing hollow ball

The bouncing ball problem was demonstrated to be a simple manner to experience chaotic behaviours. We studied a bouncing hollow ball which was filled with grains. On one hand, this procedure highly increases the number of freedom. On the other … Continue reading

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Bouncing spring

In recent years, bouncing droplets have been studied [1,2] in our lab. We have also proposed to model bouncing droplets by bouncing springs [3], elastic deformations are assumed to capture surface tension effects while viscous damping is linked to internal … Continue reading

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Bouncing droplets : modes and bifurcations

A bouncing droplet can be sustained indefinitely on the surface of a liquid bath that is  oscillating vertically.  This physical system proves to be extremely rich with fascinating outcomes ranging from the manipulation of droplets without contact to experimental models … Continue reading

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Maxwell’s demon in space

In our last article published in Phys. Rev. E, we show how dynamical clustering triggers the Maxwell’s demon in microgravity experiments. In the framework of the ESA SpaceGrains project, we realized numerical simulations in order to test the granular Maxwell’s … Continue reading

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Pulses in a vertical granular column

We investigated the dynamics of a vertical column of 12 beads submitted to a series of taps. Impulses are strong enough to eject beads. The motion of the beads are recorded using a high-speed camera. Depending on the frequency of taps, … Continue reading

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