2011
DOI: 10.1029/2010wr010295
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Fine particle deposition to porous beds

Abstract: [1] We summarize the results of flume experiments examining the transport behavior of dilute suspensions of silt-sized particles carried in an open channel flow over three separate bed types including porous open mesh, glass beads, and small cobbles. In these experiments the time-varying concentration of particles in suspension transport was measured as a function of suspended-particle size and bed shear stress, and analyzed using a 1-D model incorporating simultaneous deposition and entrainment. Rates of fine… Show more

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Cited by 19 publications
(27 citation statements)
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“…The low Q w values during the dry season (Figure ) result in reduced turbulent kinetic energy, allowing fine suspended sediment and POC to settle [ Garcia and Parker , ; Hamm et al ., ]. The hydrological budget of this catchment shows that the majority of the river water during the dry season is sourced from delayed runoff via groundwater [ Clark et al ., ].…”
Section: Discussionmentioning
confidence: 99%
“…The low Q w values during the dry season (Figure ) result in reduced turbulent kinetic energy, allowing fine suspended sediment and POC to settle [ Garcia and Parker , ; Hamm et al ., ]. The hydrological budget of this catchment shows that the majority of the river water during the dry season is sourced from delayed runoff via groundwater [ Clark et al ., ].…”
Section: Discussionmentioning
confidence: 99%
“…The size of the fines is therefore not the only parameter to be considered when studying infiltrated beds. Hamm et al (2011) measured bed shear stresses in open-channel flows over permeable beds formed by glass beads (D 50 D 1.5 mm) or cobbles (D 50 6.5 cm). Bed permeability, consolidation and fine sediment shape are also important parameters controlling q s .…”
Section: Impact Of Geotechnical Bed Propertiesmentioning
confidence: 99%
“…Bed permeability k mainly depends on the grain size and particle shape of the coarse and fine particles. Previous studies highlighted the impact of bed permeability on hydraulic roughness (Manes et al, 2009;Hamm et al, 2011). Hamm et al (2011) measured bed shear stresses in open-channel flows over permeable beds formed by glass beads (D 50 D 1.5 mm) or cobbles (D 50 6.5 cm).…”
Section: Impact Of Geotechnical Bed Propertiesmentioning
confidence: 99%
“…Thomas et al (2001) found clear influence of fall velocity on deposition velocity for particulate organic matter and suggested that gravitational forces control the deposition for particles >100 µm. Hamm et al (2011) studied silt-sized particles in an open channel flow with permeable beds. With the method used, no significant variation due to particle size in the effective deposition velocity relative to still water was found, but there was a relationship between deposition rate and bed shear stress.…”
Section: Mathematical Modelling Of Suspended Sediment Transportmentioning
confidence: 99%