Interaction between two localized fluidization cavities in a granular media: experiments and numerical simulation
Résumé
In this work, we present experimental and numerical results of the interaction between
two localized fluidization cavities in an immersed granular packing. According to the
gap between the two locally injected upward fluid flows, each fluidized cavity will
evolve independently of the another, or conversely, the two cavities can interact with
each other: they merge and eventually behave like a single cavity. Combined optical
techniques are used for visualization of particle motion inside the granular media
(Refractive index-matching between liquid and beads and planar laser-induced
fluorescence), while our two-dimensional simulation is based on coupled Discrete
Element and Lattice Boltzmann Methods (DEM-LBM)
Format : Poster
