Shallow Fluidized Bed Experiments

1999

Onset of fluidization


Experimental setup


Time-averaged image (exposition 0.8 s) (a), differential image (b)


Temporal evolution of the spatially averaged brightness of differential images for various values of the pressure drop 31.3 kPa(a), 32.9 kPa (b), 34.1kPa (c), and 35.6 kPa (d)

     
Characteristic bed relaxation time and differential image brightness vs pressure drop
 

The fluidization dynamics near the threshold can be modeled by the appropriate Cellular Automata Model. The description of the model and the results of its analysis can be found here.


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