Predicting Bed Shear Stresses in Vegetated Channels [PDF]
Water Resources Research, 2018 Shear stresses on vegetated beds play an important role in driving a wide range of processes at the sediment‐water interface, including sediment transport.
Vahid Etminan +2 more
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Experimental Study Of The Effect Of The Ripple Bed Forms On The Bed Shear Stress [PDF]
علوم و مهندسی آبیاری, 2015 Interaction between water flow and bed erodibility, which is associated with sediment transport and creat bed forms. Ripples are the smallest of the bed forms.
Hosein Samadi-Boroujeni +3 more
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Estimation of the bed shear stress in vegetated and bare channels with smooth beds [PDF]
Water Resources Research, 2015 AbstractThe shear stress at the bed of a channel influences important benthic processes such as sediment transport. Several methods exist to estimate the bed shear stress in bare channels without vegetation, but most of these are not appropriate for vegetated channels due to the impact of vegetation on the velocity profile and turbulence production ...
Judy Q Yang, Heidi Nepf
exaly +4 more sources
Bed Shear Stress and Near‐Bed Flow Through Sparse Arrays of Rigid Emergent Vegetation
Water Resources ResearchVegetation is an essential component of natural rivers and has significant effects on flow and morphodynamic processes. Although progress has been made in characterizing flow resistance in vegetated flows, the impact of vegetation on bed shear stress, a ...
J. Aliaga, J. Aberle
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A bed load transport equation based on the spatial distribution of shear stress – Oak Creek revisit [PDF]
Earth Surface Dynamics, 2020 Bed load transport formulations for gravel-bed rivers are often based on reach-averaged shear stress values. However, the complexity of the flow field in these systems results in wide distributions of shear stress, whose effects on bed load transport are
A. Monsalve +4 more
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BED SHEAR STRESS IN UNSTEADY FLOW [PDF]
Coastal Engineering Proceedings, 2011 Standard engineering methods of estimating bed shear stress using friction factors can fail spectacularly in unsteady hydrodynamic conditions. This paper demonstrates this fact using direct measurements of bed shear stresses under irregular waves using a shear plate apparatus.
Guard, Paul Andrew +2 more
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Fluctuations of Turbulent Bed Shear Stress [PDF]
Journal of Engineering Mechanics, 2003 With the assumption that the bed shear stress fluctuates in a lognormal fashion, the probability density function (PDF) of the standardized bed shear stress is derived as a function of the relative shear stress intensity. The PDF is more skewed with larger relative intensities, but approaches a Gaussian function when the relative intensity is small ...
Cheng, Nian-Sheng +1 more
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Numerical Investigation of Bed Shear Stress and Roughness Coefficient Distribution in a Sharp Open Channel Bend [PDF]
Journal of Applied Fluid Mechanics, 2023 The helical flow leads to the redistribution of the bed shear stress and roughness coefficient in open-channel bends, influencing the transport of sediment and riverbed evolution process.
P. Hu, M. Yu
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Experimental Study of Bed Shear Stress in Straight Channels Covered with Dunes of Different Sizes [PDF]
علوم آب و خاک, 2023 The formation of bed form in alluvial rivers due to sediment transport has a significant effect on the hydraulic parameters of the flow such as bed shear stress.
M. Badzanchin +2 more
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Note on estimating bed shear stress caused by breaking random waves
Oceanologia, 2021 This note presents a method of how the bed shear stress caused by breaking random waves on slopes can be estimated. This is obtained by adopting the Sumer et al. (2013) bed shear stress formula due to spilling and plunging breaking waves on hydraulically
Dag Myrhaug, Muk Chen Ong
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