Results 11 to 20 of about 250 (214)
Experimental study on bed load transport in the armoring process
Shui kexue jinzhan, 2018 To study the characteristics of bed load transport during armor breakup and reformation, three groups of long-duration laboratory experiments were conducted without sediment supply. Each experiment group employed a stepwise increasing discharge.
XU Yuan, ZHU Dejun, MENG Zhen, LI Danxun
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A bed-load formula based on kinetic theory
Shui kexue jinzhan, 2013 Bed-load plays an important role in sediment transport in fluvial rivers. This paper presents a bed-load formula on the basis of kinetic theory. The pick-up rate of bed-load sediment in the formula is obtained by integrating the velocity distribution ...
ZHANG Lei +3 more
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Movement characteristics and transport laws of the bimodal bed load
Shui 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
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Sediment shell-content diminishes current-driven sand ripple development and migration [PDF]
Earth Surface Dynamics, 2021 Shells and shell fragments are biogenic structures that are widespread throughout natural sandy shelf seas and whose presence can affect the bed roughness and erodibility of the seabed.
C. H. Cheng +7 more
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Correction to “A general power equation for predicting bed load transport rates in gravel bed rivers” [PDF]
Water Resources Research, 2007 [1] In the paper ‘‘A general power equation for predicting bed load transport rates in gravel bed rivers’’ by Jeffrey J. Barry et al. (Water Resources Research, 40, W10401, doi:10.1029/2004WR003190, 2004), the y axis for Figures 5 and 10 was incorrectly labeled and should have read ‘‘log10 (predicted transport) – log10 (observed transport).’’ In ...
Jeffrey J. Barry +2 more
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Flow Resistance and Bed Load Transport Rate for Sand Waves
PROCEEDINGS OF HYDRAULIC ENGINEERING, 1992 Bed shear stress distribution along the bed surface is derived from boundary layer equation. Then, an effective shear stress for sand waves is expressed as integration of the bed shear stress distribution. As the bed load motion is influenced by fluctuation of flow intensity, the estimation methods of pick-up rate and average step length are proposed ...
MIWA, Hiroshi, DAIDO, Atsuyuki
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Effect of sampling time on measured gravel bed load transport rates in a coarse‐bedded stream [PDF]
Water Resources Research, 2005 This study empirically quantified the effect of sampling time on measured transport rates and fitted rating curves based on results obtained from bed load traps deployed for 2, 10, and 60 min in a coarse‐bedded stream. As expected for a skewed distribution of transport rates, 2 min deployment underpredicted transport rates obtained from 10 and 60 min ...
Kristin Bunte, Steven R. Abt
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Journal of Marine Science and Engineering, 2023 This study focuses on the numerical investigation of the 3D hydrodynamic processes of coastal zones such as wave breaking, wave-induced currents, and sediment transport, using the multiphase, interFoam solver of OpenFOAM® (a state-of-the-art, open-source
Ioannis Kazakis, Theophanis V. Karambas
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Bed-load transport rate based on the entrainment probabilities of sediment grains by rolling and lifting [PDF]
International Journal of Sediment Research, 2018 38 pages, 4 ...
Li, Jun-de, Sun, J, Lin, B
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Advection and dispersion of bed load tracers [PDF]
Earth Surface Dynamics, 2018 We use the erosion–deposition model introduced by Charru et al. (2004) to numerically simulate the evolution of a plume of bed load tracers entrained by a steady flow. In this model, the propagation of the plume results from the stochastic exchange of
E. Lajeunesse, O. Devauchelle, F. James
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