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Flume Experiments to Constrain Bedload Adaptation Length
Journal of Hydrologic Engineering, 2015AbstractSpatially variable channel geometry in natural rivers produces nonuniform flow and spatial gradients in the shear stress field. The travel distance required for the flow to acquire the capacity bedload concentration and attain a new equilibrium bedload transport rate upon encountering a region of higher or lower shear stress is defined as the ...
David Gaeuman, Leonard Sklar, Yong Lai
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Computer Vision for Wave Flume Experiments
2009During the past several decades, a number of attempts have been made to contain oil slicks (or any surface contaminants) in the open sea by means of a floating barrier. Many of those attempts were not very successful especially in the presence of waves and currents.
Óscar Ibáñez +1 more
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DUNE EROSION AND OVERWASH IN LARGE-SCALE FLUME EXPERIMENTS
The Proceedings of the Coastal Sediments 2011, 2011The present paper gives a general overview of the large-scale physical model experiments performed at the LIM/UPC in Barcelona, within the EU-Hydralab III Integrated Infrastructure Initiative. The model tests have been carried out in a flume with a sandy dune exposed to a combination of water levels and wave conditions.
TOMASICCHIO, Giuseppe +7 more
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Shoreline Autoretreat Substantiated in Flume Experiments
Journal of Sedimentary Research, 2001ABSTRACT Under conditions of constant sediment supply (S) to the basin and a steady rate of rise (A) in relative sea level, the autoretreat theory predicts that shorelines can retreat landwards at a relatively early stage of delta growth and attain an "autobreak" state, after which the existing subaqueous slope begins to be starved of sediment and ...
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Understanding Debris Flow Characteristics Using Flume Experiments
2017Open image in new window Confined or channelized debris flow is one of the most powerful processes for transporting solid materials along the mountain torrent. It is defined as a type of mass movement that involves water-charged, predominantly coarse materials flowing rapidly down along a steep confined, pre-existed channel.
Sangjun Im, Song Eu, Dongyeob Kim
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SOME FLUME EXPERIMENTS WITH A FINE SILT
Sedimentology, 1966SUMMARYFour flume experiments have been performed in which the behaviour was investigated of a bed of fine silt under running water with and without an excess of material introduced into suspension.In the presence of excess material, bed features were formed in the tangential stress range 0.1 < θ < 0.4, and the bed was found to remain plane in ...
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Clearwater Local Scour Experiments in a Large Flume
Building Partnerships, 2000Local sediment scour experiments have been conducted with 0.114 m, 0.305 m and 0.914 m diameter circular piles in a 6.1 m (20 ft) wide by 6.4 m (21 ft) deep by 38.4 m (126 ft) long flume in the Hydraulics Laboratory at the USGS Conte Laboratory in Turners Falls, MA. All of the tests to date have been in the clearwater scour range of velocities and with
Sheppard, D M +3 more
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Wave flume experiments to unravel saltmarsh cliff hydrodynamics
2023<p>Nature-based flood defences receive increasing interest as a viable option for improving flood safety worldwide. A contemporary case is using the ability of saltmarshes to attenuate waves during storm conditions for strengthening coastal flood defences.
Jos Muller +6 more
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Flume experiments on alternate bars in unsteady flow
1991— Flume experiments are performed to investigate the process of development of alternate bars under unsteady flow conditions. The bed response to unsteady flow is analyzed for different values of the period of the flood and the observed temporal behaviour of the amplitude of bars, which appears to be strongly affected by the unsteady character of the ...
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WAVE FLUME EXPERIMENT ON SEABED RECONSTRUCTION BY LIQUEFACTION
Marine Geology & Quaternary Geology, 2013In this paper,we studied the variation of the granular composition,microstructure and strength of seabed sediments under continuous wave actions and the contribution of wave-induced seabed fluidization to the physical properties of seabed sediments.The silt sediment used in the experiment was taken from the modern Yellow River delta.The experiment ...
Liping ZHANG +4 more
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