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The effects of three vibrational modes (twist, vertical and horizontal) on flow patterns are discussed. The particles used are four powders (glass beads, 6-100 μm), which are Geldart group A or group C. The fluidity of particles is evaluated with vibration strength (A), minimum fluidization velocity (u mf ), void fraction and flow patterns in the bed. The effect of vibrational mode on the...
The expansion of free bubbling gas fluidized beds has been investigated experimentally in a two-dimensional perspex-walled bed. Glass beads were fluidized with dried air at varying gas velocities, while the bed was vibrated at different frequencies, amplitudes and directions to study their effects on the fluidization quality. The experimental results showed that the particle flow pattern depends on...
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