Sedimentation Patterns in Mountainous Reservoirs under the Combined Influence of Suspended Load and Bed Load: A Case Study of Tianzishan Reservoir in Hunan [PDF]
长江科学院院报[Objectives] This study aims to quantify the respective contributions of suspended load and bed load to reservoir sedimentation over different operational periods, and to evaluate the impacts of upstream bed load supply rate, grain size distribution, and
ZENG Xin, ZHANG Wen-hai, GONG Ping, YUAN Yuan
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Experimental study on non-uniform sediment motion characteristics
Shui kexue jinzhan, 2016 The sand in a natural riverbed is usually non-uniform and is considered as the basis for simulating and forecasting the evolution of the natural riverbed, to accurately understand the movement of non-uniform sediment particles.
XU Linjuan, CAO Wenhong, LIU Chunjing
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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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Influence of Bed‐Load Transport on Flow Resistance of Step‐Pool Channels
Water Resources Research, 2018 This study investigates the influence of bed‐load transport on flow resistance and bed stability in steep step‐pool channels. A total of 86 flume experiments was performed.
B. Hohermuth, V. Weitbrecht
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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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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 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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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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