Results 31 to 40 of about 199,649 (303)

Grundlegende Prozesse betreffend Hydraulik, Sedimenttransport und Flussmorphologie an der Donau [PDF]

open access: yes, 2016
Im Rahmen des Pilotprojektes Bad Deutsch-Altenburg wurde vor, während und nach der gleichzeitigen Umsetzung mehrerer Maßnahmen (Buhnenumbau, Granulometrische Sohlverbesserung GSV, Uferrückbau und Gewässervernetzung) ein umfassendes Monitoringprogramm ...
Gmeiner, Philipp   +4 more
core   +2 more sources

Grain shape effects in bed load sediment transport

open access: yesNature, 2021
Bed load sediment transport, in which wind or water flowing over a bed of sediment causes grains to roll or hop along the bed, is a critically important mechanism in contexts ranging from river restoration to planetary exploration. Despite its widespread occurrence, predictions of bed load sediment flux are notoriously imprecise.
Eric Deal   +6 more
openaire   +3 more sources

Collisional transport model for intense bed load

open access: yesJournal of Hydrology and Hydromechanics, 2020
In an open channel with a mobile bed, intense transport of bed load is associated with high-concentrated sediment-laden flow over a plane surface of the eroded bed due to high bed shear.
Matoušek Václav, Zrostlík Štěpán
doaj   +1 more source

Spatially-averaged momentum fluxes and stresses in flows over mobile granular beds : a DNS-based study [PDF]

open access: yes, 2017
Acknowledgements The authors gratefully acknowledge the Centre for Information Services and High Performance Computing (ZIH), Dresden, and the Jülich Supercomputing Centre (JSC) for providing computing time.
Fröhlich, Jochen   +3 more
core   +1 more source

Whit ham method of the expansion near the wave front propagating on the river with bed load transport

open access: yesVietnam Journal of Mechanics, 1990
In this paper the non linear differential equation describing the behavior of water surface behind the wave front is obtained by Whit ham method. It is shown that the bed load transport could influence significantly on the stability of the flood wave ...
Pham Hung
doaj   +1 more source

Sediment Transport Capacity in a Gravel-Bed River with a Sandy Tributary

open access: yesCivilEng, 2023
Bedload transport in a river is a deeply analyzed problem, with many methodologies available in the literature. However, most of the existing methods were developed for reaches of rivers rather than for confluences and are suitable for a particular type ...
Pedro Martin-Moreta   +2 more
doaj   +1 more source

Numerical simulation of bar and island morphodynamics in anabranching mega-rivers [PDF]

open access: yes, 2013
Onlineopen article ©2013 American Geophysical Union.Bar and island morphodynamics in the world's largest anabranching rivers are investigated using a new numerical model of hydrodynamics, sediment transport, bank erosion, and floodplain development ...
Bridge J. S.   +16 more
core   +1 more source

Dynamic Characteristics of Suspended Load and Bed Load Transport in Meltwater Runoff of Qiyi Glacier

open access: yesShuitu Baochi Xuebao
[Objective] The transportation of sediment via glacial meltwater can not only reflect the glacial erosion and landform evolution, but also is one of the important sediment sources for the downstream river.
ZHAO Yi   +5 more
doaj   +1 more source

On Reasons of the Scatter of Literature Data for Bed‐Load Particle Hops

open access: yesWater Resources Research, 2019
This Report examines two key issues emerging when one deals with high‐resolution data for particle tracks in bed‐load transport. The first relates to how a particle motion/rest state is defined; using different definitions of motion changes the mean ...
Seyed Abbas Hosseini‐Sadabadi   +2 more
doaj   +1 more source

Parameter Optimization of a Bed Load Transport Formula for Nestos River, Greece

open access: yesProceedings, 2018
In the Second EWaS International Conference (June 2016, Chania, Crete, Greece), the bed load transport formula of Meyer-Peter and Müller (1948) was calibrated with respect to the bed roughness coefficient for Nestos River.
Epameinondas Sidiropoulos   +2 more
doaj   +1 more source

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