Results 31 to 40 of about 3,969,409 (308)

Experimental evaluation of resistance of eroded bed in sediment laden open channel flow: Combined load transport case [PDF]

open access: yesEPJ Web of Conferences
A relation between the discharge and the flow depth in an open channel is quite sensitive to resistance (expressed by the friction coefficient) of the channel bottom.
Matoušek Václav
doaj   +1 more source

The Study Impact of Effective Factors in Sediment Transport in Unsteady Flow [PDF]

open access: yesمهندسی عمران شریف, 2022
The role of floods in sediment transport and river morphology has been proven. In this study, the effect of different parameters on the transfer of sediment bed load under flash flood has been investigated.
S. A. Esmaili, S. Gohari, M. Heydari
doaj   +1 more source

Movement characteristics and transport laws of the bimodal bed load

open access: yesShui kexue jinzhan, 2015
The non-uniform bed load transport is a complicated coherent physical process of the fluid and solid in river. The research into the motion characteristics,transport laws as well as the action mechanism of influencing factors can help to not only ...
SUN Dongpo   +5 more
doaj   +1 more source

Bed load transport by submerged jets [PDF]

open access: yesProceedings of the National Academy of Sciences, 1979
Some similarities are presented between the bed load transport of noncohesive grains in long rivers and at a local, jet-induced scour. Experiments are described in which a submerged two-dimensional slot nozzle, inclined downward, eroded a deep sand bed.
J R, Francis, P S, McCreath
openaire   +2 more sources

Determining the scales of collective entrainment in collision-driven bed load

open access: yesEarth Surface Dynamics, 2018
. Fluvial bed-load transport is notoriously unpredictable, especially near the threshold of motion where stochastic fluctuations in sediment flux are large.
Dylan B. Lee, D. Jerolmack
semanticscholar   +1 more source

Probabilistic Modeling of Bed-Load Composition [PDF]

open access: yesJournal of Hydraulic Engineering, 2004
This paper proposes that the changes which occur in composition of the bed load during the transport of mixed-grain-size sediments are largely controlled by the distributions of critical entrainment shear stress for the various size fractions. This hypothesis is examined for a unimodal sediment mixture by calculating these distributions with a discrete
McEwan, I.   +6 more
openaire   +2 more sources

Scaling relationships between bed load volumes, transport distances, and stream power in steep mountain channels

open access: yesJournal of Geophysical Research F: Earth Surface, 2014
James Kirchner   +2 more
exaly   +2 more sources

Bed‐Load Transport in Vegetated Flows: Phenomena, Parametrization, and Prediction

open access: yesWater Resources Research, 2021
This study presents an experimental study on bed‐load transport in the presence of emergent vegetation, which is simulated using uniformly sized circular cylinders arranged in a homogeneous distribution.
Haoliang Wu   +2 more
doaj   +1 more source

Bed load proppant transport during slickwater hydraulic fracturing: insights from comparisons between published laboratory data and correlations for sediment and pipeline slurry transport [PDF]

open access: yes, 2016
Bed load transport is the movement of particles along the top of a bed through rolling, saltation, and suspension created by turbulent lift above the bed surface. Based on experimental work, early investigators suggested that bed load transport may be an
M. McClure
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy