Resuspension of Particle Bed by Round Vertical Jet
Publication: Journal of Environmental Engineering
Volume 122, Issue 9
Abstract
An experimental study was carried out to investigate the resuspension (fluidization) of a loosely held monodispersed particle bed by a momentum jet, discharging from below. The work was motivated by its applications to limnological situations where the bottom sediments are suspended by a series of jets fed by a ground-water karstic system. Two different flow regimes were identified, and the conditions under which they occur were mapped on a regime diagram between the two important nondimensional variables, h o /d p and h o //w s), where h o is the height of the particle layer; w s is the particle-settling velocity; and M o is the momentum flux of the jet. The maximum height of rise of particles within the jet was also determined as a function of these nondimensional variables. Comparisons of laboratory and field observational results were also made.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 122 • Issue 9 • September 1996
Pages: 864 - 869
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Sep 1, 1996
Published in print: Sep 1996
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