Results 21 to 30 of about 3,969,409 (308)
Movement of sediment over periodic bed [PDF]
Компьютерные исследования и моделирование, 2018 The movement of bed load along the closed conduit can lead to a loss of stability of the bed surface, when bed waves arise at the bed of the channel. Investigation of the development of bed waves is associated with the possibility of determining of the ...
Yuliya Georgievna Krat +1 more
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Impact of Vegetation on Bed Load Transport Rate and Bedform Characteristics
Water Resources Research, 2018 The impacts of aquatic vegetation on bed load transport rate and bedform characteristics were quantified using flume measurements with model emergent vegetation.
J. Yang, H. Nepf
semanticscholar +1 more source
The role of velocity, pressure, and bed stress fluctuations in bed load transport over bed forms: numerical simulation downstream of a backward-facing step [PDF]
Earth Surface Dynamics, 2015 Bed load transport over ripples and dunes in rivers exhibits strong spatial and temporal variability due to the complex turbulence field caused by flow separation at bedform crests.
M. W. Schmeeckle
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Experimental study on the impact of bed forms on bed load transport in mountain streams
Shuili Shuiyun Gongcheng Xuebao, 2021 The flume experiments of bed load transport in the conditions of highslope shallow water flow were carried out in order to explore the impact of flow hydraulics and bed forms on bed load transport in gravel-cobble rivers in mountainous areas.
ZHANG Liguo +3 more
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Diffusive Regimes of the Motion of Bed Load Particles in Open Channel Flows at Low Transport Stages
Water Resources Research, 2018 The stochasticity of fluid and sediment parameters has been identified as a source of diffusion, particularly anomalous diffusion at different temporal and spatial scales of bed load particle trajectories.
M. Cecchetto +5 more
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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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Effect of Flood Hydrograph Duration, Magnitude, and Shape on Bed Load Transport Dynamics
Geophysical Research Letters, 2018 Bed load sediment transport is an inherently challenging process to measure within a river, which is further complicated by the typically transient nature of the hydrograph.
C. Phillips +4 more
semanticscholar +1 more source
Railway Engineering Science, 2023 Cyclic load is widely adopted in laboratory to simulate the effect of train load on ballast bed. The effectiveness of such load equivalence is usually testified by having similar results of key concerns of ballast bed, such as deformation or stiffness ...
Longlong Fu +3 more
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Geography, Environment, Sustainability, 2023 The development of bed load calculation methods directly depends on the reliability of the measurement data. The most reliable measurement data remains the data obtained by the volumetric method when observing the filling of reservoirs, borrows, ditches ...
Olga A. Petrovskaya, Andrey A. Maltsev
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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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