Tag Archives: granular matter

Mimicking wet colloidal suspensions with dry granular media

Athermal two-dimensional granular systems are exposed to external mechanical noise leading to Brownian-like motion. Using tunable repulsive interparticle interaction, it is shown that the same microstructure as that observed in colloidal suspensions can be quantitatively recovered at a macroscopic scale. … Continue reading

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How to handle granulates in space ?

The peculiar behavior of granular materials in microgravity is a hard physics problem. In the dilute case, granular gases loose kinetic energy and may form clusters. In order to avoid this “cooling effect”, mechanical energy should be continuously injected in … Continue reading

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granular smoothie

For the last 11 years and following an original idea of the Nobel Prize Pierre-Gilles de Gennes, the ESPGG has been promoting researchers from Paris and outside by mean of plenary experimental conferences. More than 100 scientists have so presented … Continue reading

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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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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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