Anomalous diffusion in a bench-scale pulsed fluidized bed.

  title={Anomalous diffusion in a bench-scale pulsed fluidized bed.},
  author={Jonathan E. Higham and Mehrdad Shahnam and Avinash Vaidheeswaran},
  journal={Physical review. E},
  volume={103 4-1},
We present our analysis on microrheology of a bench-scale pulsed fluidized bed, which represents a weakly confined system. Nonlinear gas-particle and particle-particle interactions resulting from pulsed flow are associated with harmonic and subharmonic modes. While periodic structured bubble patterns are observed at the mesoscale, particle-scale measurements reveal anomalous diffusion in the driven granular medium. We use single-particle tracks to analyze ergodicity and ageing properties at two… 

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