Parametric study of the particle motion induced by a vortex shaker

2.0 Vortex shakers can be used to study the dustiness of powders. A parametric study has been performed to estimate the influence of diverse features on a traced particle's movements. The air flow has almost no effect on the particle's motion. Increasing the powder mass from 2 g to 4 g has...

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Bibliographic Details
Published in:Powder technology 2020-09, Vol.374, p.70-81
Main Authors: Fischer, Marc, Chakravarty, Somik, Le Bihan, Olivier, Morgeneyer, Martin
Format: Article
Language:English
Subjects:
Aerodynamics
Air flow
Chemical Sciences
Computational fluid dynamics
Dustiness
Parametric statistics
Particle motion
PEPT
Powder
Shakers
Tracer particles
Velocity
Vortex-shaker
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Summary:2.0 Vortex shakers can be used to study the dustiness of powders. A parametric study has been performed to estimate the influence of diverse features on a traced particle's movements. The air flow has almost no effect on the particle's motion. Increasing the powder mass from 2 g to 4 g has no effect on the horizontal coordinates but increases the height and tends to decrease the velocity. Using a larger tracer particle does not affect the height but it increases the width of the horizontal coordinates and the velocity. Increasing the rotation speed from 1000 rpm to 2500 rpm has contradictory consequences. The effects on the other variables are unsystematic and depend on whether 2 g or 4 g of powder have been used. Plausible explanations could be offered for several of the trends but numerical modelling will be necessary for accounting for all findings. [Display omitted] •A parametric study of the Vortex Shaker (VS) was performed.•Deactivating the air stream has almost no effects.•Increasing the powder mass lowers the velocities but raises the height.•Increasing the particle's size raises the horizontal but lowers the vertical velocities.•Increasing the rotation speed has unsystematic effects.
ISSN:0032-5910
1873-328X
DOI:10.1016/j.powtec.2020.06.060