Changes in wave climate over the northwest European shelf seas during the last 12,000 years
, 2009 Because of the depth attenuation of wave orbital velocity, wave-induced bed shear stress is much more sensitive to changes in total water depth than tidal-induced bed shear stress.
Austin +45 more
core +1 more source
Toward sustainable management: 2D modelling of a self-cleaning system to improve geometry in front of the flushing gate [PDF]
, 2018 This paper aims to show how numerical modelling based on 2D SWE can be used to analyze the cleaning effectiveness of flushing waves in storm tanks.
Choi, Gyewoon +4 more
core +4 more sources
A ferrofluid-based sensor to measure bottom shear stresses under currents and waves [PDF]
, 2018 This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Hydraulic Research on 2018, available online at: http://www.tandfonline.com/10.1080/00221686.2017.1397779The measurement of the near-bottom flow ...
Foti, Enrico +3 more
core +2 more sources
The role of grain dynamics in determining the onset of sediment transport
, 2017 Sediment transport occurs when the nondimensional fluid shear stress $\Theta$ at the bed surface exceeds a minimum value $\Theta_c$. A large collection of data, known as the Shields curve, shows that $\Theta_c$ is primarily a function of the shear ...
Clark, Abram H. +3 more
core +1 more source
Entropy, 2019 In this study, the entropy concept is employed to estimate the shear stress distribution in a circular channel with flat bed and trapezoidal channel.
Zohreh Sheikh Khozani +1 more
doaj +1 more source
Depth-averaged velocity and bed shear stress in unsteady open channel flow over rough bed
E3S Web of Conferences, 2018 Very few studies have been carried out in the past in estimating depth-averaged velocity and bed shear stress in unsteady flow over rough beds. An experiment is thus conducted to investigate the vertical and lateral velocity profiles under unsteady flow ...
Khuntia Jnana Ranjan +3 more
doaj +1 more source
Is the critical Shields stress for incipient sediment motion dependent on channel-bed slope? [PDF]
, 2008 Data from laboratory flumes and natural streams show that the critical Shields stress for initial sediment motion increases with channel slope, which indicates that particles of the same size are more stable on steeper slopes.
Dietrich, William E. +2 more
core +1 more source
BED TOPOGRAPHY, BED SHEAR STRESS DISTRIBUTION AND VELOCITY FIELD IN A CONFLUENCE
PROCEEDINGS OF HYDRAULIC ENGINEERING, 1990 Laboratory experiment in 60-degree confluence was conducted using wellgraded sand under active bedload condition for a discharge ratio of 0.6. The equilibrium channel bed was fixed and detailed measurements of mean flow were then carried out. Thereby, bed topography, two component velocity measurements, bed shear stress distribution and two counter ...
Weerakoon, S. B. +2 more
openaire +3 more sources
Boundary Shear Stress Measurements below Free-Surface Standing Waves : Application to Bed Form Processes [PDF]
, 1999 Waters flowing in natural streams and rivers have the ability to scour and to deposit materials, hence to change the bed topography. It is recognised that undular flows have great potential for sediment dispersion. In the present study, a fixed-bed model
Chanson, Hubert
core
Coherent structures in oscillatory flows within the laminar-to-turbulent transition regime for smooth and rough walls [PDF]
, 2016 This is an Accepted Manuscript of an article published by Taylor & Francis Group in [Journal of hydraulic research] on [2016], available online at: http://www.tandfonline.com/10.1080/00221686.2016.1174960We investigate coherent structures present in ...
Bateman Pinzón, Allen +3 more
core +3 more sources