Results 31 to 40 of about 14,188 (165)
Temporal variations of bed load transport rate and the grain size distribution of non-uniform size sediment during a constant flow rates [PDF]
MATEC Web of Conferences, 2018 Bedload transport rates at a point using both laboratory and field measurement vary with time, from almost zero to several folds of the mean rate. The need to carry out point measurements over a sufficiently long sampling period is very important to cover inconsistency in the transport rate during a short period of observation.
Saadi Yusron +2 more
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Evaluation of an acoustic Doppler technique for bed-load transport measurements in sand-bed Rivers
E3S Web of Conferences, 2018 The bottom tracking (BT) feature of the acoustic Doppler current profilers (ADCP) have emerged as a promising technique in evaluating the bed load. Strong statistical correlations are reported between the ADCP BT velocity and the transport rate obtained ...
Conevski S. +4 more
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Comparison between Computations and Measurements of Bed Load Transport Rate in Nestos River, Greece
Procedia Engineering, 2016 AbstractIn the framework of diploma theses elaborated in the Division of Hydraulic Engineering, Department of Civil Engineering, Democritus University of Thrace, measurements of stream discharge and bed load transport rate were carried out at the outlet of the mountain part of Nestos River basin (northeastern Greece). In concrete terms, 68 measurements
Papalaskaris, Thomas +2 more
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Influence of the sediment supply texture on morphological adjustments in gravel‐bed rivers
Water Resources Research, 2014 The role played by the texture of the sediment supply on channel bed adjustments in gravel‐bed rivers is poorly understood. To address this issue, an experimental campaign has been designed.
Carles Ferrer‐Boix, Marwan A. Hassan
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工程科学与技术, 2013 :The relationship between bed-load transport rate and flow intensity was discussed.Armoring layer destruction experiments were carried out in natural channel with clear-water scour.
聂锐华 +3 more
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A reduced-complexity model for sediment transport and step-pool morphology [PDF]
Earth Surface Dynamics, 2016 A new particle-based reduced-complexity model to simulate sediment transport and channel morphology in steep streams in presented. The model CAST (Cellular Automaton Sediment Transport) contains phenomenological parameterizations, deterministic or ...
M. Saletti +3 more
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Modelling Regime Changes of Dunes to Upper-Stage Plane Bed in Flumes and in Rivers
Applied Sciences, 2021 In this paper we derive a new morphological model, with an extended version of the sediment transport model for the mean step length (the average distance travelled by sediment particles), in which this mean step length depends on the mean bed shear ...
Olav J. M. van Duin +2 more
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Predicting fractional bed load transport rates: Application of the Wilcock‐Crowe equations to a regulated gravel bed river [PDF]
Water Resources Research, 2009 Bed load samples from four locations in the Trinity River of northern California are analyzed to evaluate the performance of the Wilcock‐Crowe bed load transport equations for predicting fractional bed load transport rates. Bed surface particles become smaller and the fraction of sand on the bed increases with distance downstream from Lewiston Dam. The
David Gaeuman +3 more
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Indonesian Journal of Social and Environmental IssuesThis study investigates bed load sediment transport dynamics in selected areas of Punatsangchhu River, focusing on rock type identification, their association with topography, grain size distribution, and factors influencing bed load transport rates.
Sangay Tenzin, Ugyen Dorji
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Research on bed-load transport formula in the Cheng-Han Reach of the middle Yangtze River
Shui kexue jinzhan, 2017 After the impoundment of Three Gorges Reservoir, the sediment transport in the reach from Chenglingji to Wuhan of the middle Yangtze River is dominated by the bed load which plays important roles in bed morphological changes, and correspondingly the ...
YAO Shiming, WANG Hongyang, MAO Beiping
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