Results 121 to 130 of about 79,589 (237)

Exploratory studies of open-channel flow over boundaries of laterally varying roughness [PDF]

, 1961
An exploratory study was made of open-channel flow over beds consisting either entirely or partially of large granular roughness. Steady, uniform flow was established at various depths and velocities over two types of beds, one rough over the entire ...
Taylor, Robert Hugh
core   +1 more source

Bed roughness effects on horseshoe vortex dynamics and soil erosion mechanisms in vegetated overland flows

International Journal of Sediment Research
Understanding how bed roughness modulates hydrodynamic processes around vegetation is critical for predicting soil erosion patterns in sloped landscapes.
Huilan Zhang, Fangzheng Gu, Shaoqin Xia, Feng Li, Ping Wang, Linghan Wang, Di Zhang, Yanchong Duan, Qigang Chen   +8 more
doaj   +1 more source

A Numerical Approach to Analyzing Shallow Flows over Rough Surfaces

Fluids
The hydraulic characteristics (such as velocity profiles, near-bed velocity profile, bed shear stress, and resistance coefficients) of shallow flows over rough surfaces were investigated using numerical simulations.
M. Nasimul Chowdhury, Abdul A. Khan, Oscar Castro-Orgaz   +2 more
doaj   +1 more source

The effect of bed roughness uncertainty on tidal stream power estimates for the Pentland Firth. [PDF]

R Soc Open Sci, 2020
Kreitmair MJ, Adcock TAA, Borthwick AGL, Draper S, van den Bremer TS.   +4 more
europepmc   +1 more source

Turbulent Characteristics of Shallow Flow Over Rough Surface with Regularly Arrayed Spheres [PDF]

, 2013
Turbulent nature of near-bed flow field was investigated in an open channel over a rough-bed artificially arrayed with glass beads, where ratios of the glass diameter to flow depth are 0.3, 0.5 and 0.8.
Sukarno, S. (Sukarno)
core  

Erosion and Sedimentation Processes at Northern Waihi Beach [PDF]

, 2009
The northern sector of Waihi Beach is an example of chronic erosive tendency. The sediment deficit along the area of beach fronting the seawall means that there is often no beach at high tide.
Bear, Alison Louise
core   +1 more source

Morphodynamic role of wart-type roughness in shaping flow patterns and resistance in steep channels

Results in Engineering
Open channel flow, governed by gravity and characterized by a free surface, is critical for applications such as flood control, irrigation, and stormwater management.
Hossein Sohrabzadeh Anzani, Sameh Ahmed Kantoush, Sohei Kobayashi   +2 more
doaj   +1 more source

Modelling the Eddy Pattern in the harbour of Zeebrugge [PDF]

, 2013
Hydrodynamic
Breugem, Alexander, Da Silva, Julien, Decrop, Boudewijn, Martens, Chantal, van Holland, Gijsbert   +4 more
core   +1 more source

Quantifying Bed Surface Roughness in Bedrock and Boulder‐Bed Rivers

Journal of Geophysical Research: Earth Surface
AbstractThe surface roughness of river beds affects flow resistance and sediment transport. In rough‐bed rivers (RBRs), where flow is shallow relative to roughness height, the surface roughness is difficult to define due to complex multi‐scale roughness elements (bedrock, boulders, and sediment patches).
Houseago, R. C., Hodge, R. A., Asher, B., Ferguson, R. I., Hackney, C. R., Hardy, R. J., Hoey, T. B., Johnson, J. P. L., Rice, S. P., Yager, E. M., Yamasaki, T.   +10 more
openaire   +2 more sources

Measurements of Mass Transport Over a Rough Bed

Coastal Engineering 1984, 1984
Measurements have been made with a laser doppler anemometer of the time-mean velocity of the fluid close to the bed in a wave flume. Both a rough bed, consisting of gravel of median diameter 11 mm, and a smooth bed were investigated. With the rough bed the time-mean velocity at a given height was found to be strongly dependent on position relative to ...
openaire   +2 more sources