Simulation Of Flow In A Pulsed-jet Mixer Using
A Volume Of Fluid Model
Author(s)
D. Eldin, S. Parks, C. Petty & A. Bénard
Abstract
Pulsed-jet mixers (PJM) are often used to suspend a solid phase in a liquid phase
within very large tanks. In this study, a commercial CFD code (Fluent 6.0) is
used to simulate the axisymmetric flow field induced by a PJM symmetrically
situated in a cylindrical tank. The simulation uses a volume-of-fluid model for an
air/water system with a standard k-ε model for the Reynolds stress. A large-scale
periodic recirculation zone is established within the tank and provides a means to
suspend solid particles. Particle trajectory calculations are used to identify
potential regions of high wear on the bottom of the tank and within the jet
nozzle. The simulation supports the conclusion that a PJM should be able to
suspend 100-micron diameter particles wi
Keywords
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