Dynamics of two-phase swirling flow in a vortex chamber with a lower end swirler
R.Kh. Abdrakhmanov1, N.A. Dvornikov1, and V.V. Lukashov1,2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia
E-mail: luka@itp.nsc.ru
Keywords: vortex chamber, centrifugal fluidized bed, velocity of two-phase flow
Pages: 339–346
Abstract
The
Particle Image Velocimetry (PIV) technique and laser Doppler anemometer (LDA)
were used to measure the components of tangential and axial velocities of
gas and particles in a vortex chamber with a fluidized bed, particle layer
dynamics was estimated qualitatively, and the flow in the vortex chamber with a
centrifugal fluidized bed of solid particles was simulated numerically. It is
shown that with the growth of gas velocity in the swirler slots, the rotation
velocity of bed grows almost linearly, and with an increasing bed mass, the
rotation velocity decreases. Data on distributions of the volume fraction of
particles and gas flow velocity inside the bed were obtained by numerical
calculation.
DOI: 10.1134/S0869864317030027
|
