Plug regime in water fluidized beds in very narrow tubes

  title={Plug regime in water fluidized beds in very narrow tubes},
  author={Fernando David C{\'u}{\~n}ez and Erick de Moraes Franklin},
  journal={Powder Technology},
Abstract The dynamics of granular plugs in water fluidized beds in narrow tubes is investigated here both experimentally and numerically. The fluidized beds were formed in a 25.4 mm-ID tube and consisted of alumina beads with 6 mm diameter and specific gravity of 3.69; therefore, the ratio between the tube and grain diameters was 4.23, which is considered a very narrow case. Three different beds were arranged, consisting of 250, 400 and 500 beads, and two water flow rates were imposed… Expand
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