Dense-Phase Velocity Fluctuation in a 2-D Fluidized Bed Articles uri icon

publication date

  • February 2010

start page

  • 37

end page

  • 45

issue

  • 1-2

volume

  • 200

international standard serial number (ISSN)

  • 0032-5910

electronic international standard serial number (EISSN)

  • 1873-328X

abstract

  • This work presents an investigation of the perturbations induced by the bubbles in a 2-D fluidized bed. A combination of Digital Image Analysis (DIA) and Particle Image Velocimetry (PIV) techniques was developed to
    characterize the dense and bubble phases. The analysis of the mean and
    the instantaneous fluctuations of the velocity of the dense phase,
    together with the solid movement around bubbles, allowed for the
    measurement of the influence region, distinguishing an upward moving
    dense phase in the nose and the wake of the bubble (drift) and a
    downward moving dense phase in the sides of the bubble.For an isolated.