Results 21 to 30 of about 774 (212)
علوم آب و خاک, 2022 Bed shear stress is one of the most important hydraulic parameters to determine the amount of bed and suspended load and the bed and bank scouring in rivers. Bed shear stress depends on bedforms (ripples, dunes, and anti-dunes) in alluvial rivers.
M. Heydari +2 more
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Experimental investigation on bed shear stress distribution in the roughened compound channel
Applied Water Science, 2020 The roughness in the floodplains in a compound canal and its impact on hydraulic parameters such as the shear stress and their estimation are one of the problems that have attracted the attention of engineers.
Akram Abbaspour
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Advance in bed shear stress under waves
Shui kexue jinzhan, 2021 The bed shear stress under the action of waves is one of the important essential parameters to estimate the incipient motion and transport of offshore sediment, and its bottom friction effect will also have an impact on the offshore hydrodynamic ...
Yunfeng XIA +4 more
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Critical conditions of bed sediment entrainment due to debris flow [PDF]
Natural Hazards and Earth System Sciences, 2004 The present study describes entrainment characteristics of bed material into debris flow, based on flume tests, numerical and dimensional analyses. Flume tests are conducted to investigate influences of bed sediment size on erosion rate by supplying ...
M. Papa, S. Egashira, T. Itoh
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Strain hardening by sediment transport
Physical Review Research, 2022 The critical fluid-shear stress for the onset of sediment transport, θ_{c}, varies with the history of applied shear. This effect has been primarily attributed to compaction; the role of shear jamming is less explored.
Fernando D. Cúñez +4 more
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Shanghai Jiaotong Daxue xuebao, 2021 In both the natural environment and hydraulic engineering, there widely exists the phenomenon of gravity current. In practical conditions, most beds are covered with gravel and sediment particles of different sizes, which can be regarded as rough bed ...
HAN Dongrui +5 more
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Particle Image Techniques for Measuring Instantaneous Bed Shear Stress in Open Channel Flows
工程科学与技术, 2022 Measurement of instantaneous bed shear stress in open channel flows is challenging but extremely important. In order to accurately measure the instantaneous bed shear stress with particle image techniques, synthesized particle images with different image
Qigang CHEN +5 more
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Quantification of bed-load transport over dunes
E3S Web of Conferences, 2018 There is disagreement in the literature as to whether a shear stress-based approach can be used to accurately predict sediment transport over dunes. This study aims to address this disagreement.
Lockwood Kenneth +2 more
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Wave-Current Impact on Shear Stress Patterns around 3D Shallow Bedforms
Journal of Marine Science and Engineering, 2022 Observations from wave basin experiments and wave-resolving numerical simulations demonstrate the effect of wave-current interaction on shear stress around a sandy mound.
Julia Hopkins +3 more
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Bed-Shear Velocity Measurement in Curved Open Channel
Civil and Environmental Science Journal, 2021 Generally, the condition of the rivers in Indonesia are alluvial rivers which had meanders, where the change in the river bed topography often occur.
Sumiadi Sumiadi +3 more
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