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Collision of fluid immersed grains
The collision of a sphere with a solid wall immersed in a fluid is studied with an interferometric technique to solve the collision process in time (resolution 2 μs) and space (resolution 0.2 μm). The influence of roughness on the collision process is characterized by using controlled microtexture walls. The rebound or not of the sphere can be characterized according to the number of Stokes of collision and the geometric and elastic characteristics of the wall. The detailed modelling of hydrodynamics makes it possible to highlight the viscous dissipation occurring during the collision process.
Other experiments in this research area |

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We moved to our new building |
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Since March 2019, the laboratory FAST has moved to the new building Pascal (building 530).
Visit the new building
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