Results 51 to 60 of about 14,188 (165)
Journal of Marine Science and Engineering, 2020 In the case of huge tsunamis, such as the 2004 Great Indian Ocean Tsunami and 2011 Great East Japan Tsunami, the damage caused by ground scour is serious.
Sayed Masihullah Ahmadi +2 more
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A study of the spatio-temporal behaviour of bed load transport rate fluctuations
, 2014 This thesis addresses the problem of a statistical description of the transport of sediment as bed load. It highlights the role of fluctuations arising during the transport process, and their impact on macroscopic averages. The results presented here are based on four experimental studies. Two of them were published recently by Böhm et al.
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Experimental results on sand transport under waves in large-scale wave flume
Vietnam Journal of Mechanics, 2000 The paper presents some results of a study based on the experiment carried out in Delta Flume of Delft Hydraulics. The analysis of time-series of sand concentration and velocity are implemented for regular and irregular waves with different conditions ...
Dang Huu Chung
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Probability distributions of bed load transport rates: A new derivation and comparison with field data [PDF]
Water Resources Research, 2010 It has been known for a long time that sediment transport rates can vary strongly even if the ambient hydraulic conditions remain steady. In this article, a new approach is described to derive probability distributions of bed load transport rates, starting from the waiting time between the arrivals of individual sediment particles. The formalism should
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Effects of Leafy Flexible Vegetation on Bed‐Load Transport and Dune Geometry
Water Resources ResearchThe development of sustainable river management strategies requires knowledge of the effect of vegetation on hydrodynamics and sediment transport. To date, the complex physical processes involving the combined effects of leafy flexible vegetation and ...
G. Artini +3 more
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Comparing the Efficiency of Sediment Rating Curve and ANN Models in Estimating River Bed-load [PDF]
جغرافیا و پایداری محیط, 2017 Evaluation and selection of the most appropriate methods for bed-load estimation is necessary because of the sampling difficulties and inaccurate estimations of the empirical equations.
Jamal Mosaffaie +2 more
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Experimental Investigation and Numerical Simulation of Morphological Changes in Natural Channel Bend
Journal of Applied Fluid Mechanics, 2018 Sediment transport is an important process in maintaining balance of the form of river. The transport of bed load particles affects the processes of aggradation and degradation of the riverbed significantly.
S. K. Lee, T. A. Dang
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工程科学与技术The calculation of the bed-load transport rate in open-channel flows was currently modeled on the flat bare-bed shear stress (without vegetation cover) as a basis for characterizing the flow intensity.
CHEN Xincong +3 more
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E3S Web of Conferences, 2018 Intense sediment transport experiments were performed in a gravity driven open-channel flow with two sizes of non-spherical acrylic particles of diameter dp=1.0mm and dp=3.0 mm, and a maximum packing volumetric concentration of 0.55 m3/m3.
Fromant Guillaume +5 more
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Frontiers in Marine ScienceMigrating sand waves are widely developed on the outer continental shelf and upper slope of the northern South China Sea (SCS), at water depth ranging from 80 m to 250 m.
Yueyue Lei +4 more
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