Results 21 to 30 of about 1,276 (229)

Impact of armour layer on the depth of scour hole around side-by-side bridge piers under ice-covered flow condition

Journal of Hydrology and Hydromechanics, 2019
In the present study, experiments were conducted in a large-scale flume to investigate the issue of local scour around side-by-side bridge piers under both ice-covered and open flow conditions.
Namaee Mohammad Reza, Sui Jueyi
doaj   +1 more source

Scaling and Spatial Analysis of Infiltration at the Regional Scale (Case Study: the Shahrekord Watershed) [PDF]

مهندسی منابع آب, 2014
Some Experiments were conducted in water research center, for five specific discharge and four tail water depth to investigate effects of parameters like specific discharge and tail water depth.
gh. a, m.r k, e. s
doaj  

Effect of trapezoidal collars as a scour countermeasure around wing-wall abutments

Water Science and Engineering, 2018
Local scour around bridge abutments is a widespread problem that can result in structural failure. Collars can be used as a countermeasure to reduce the scour depth.
Payam Khosravinia, Amir Malekpour, Ali Hosseinzadehdalir, Davod Farsadizadeh   +3 more
doaj   +1 more source

Evolution of local scour downstream of Type A PK weir in non-cohesive sediments

Journal of Hydrology and Hydromechanics, 2022
A large-scale piano key weir laboratory study was conducted to investigate the evolution of the scour process occurring in the downstream basin for two non-cohesive granular bed materials, including the analysis of scour-hole geometry and patterns at ...
Lantz Wyatt D., Crookston Brian M., Palermo Michele   +2 more
doaj   +1 more source

Experimental study on scour around beveled submerged vanes

International Journal of Sediment Research
Submerged vanes are an effective approach to sediment management in river systems. Nowadays, submerged vanes are increasingly utilized in contemporary river engineering due to their convenient and cost-effective installation, which distinguishes them ...
Anirban Mandal, Zulfequar Ahmad, Erik Mosselman   +2 more
doaj   +1 more source

Physically based formula for the maximum scour depth induced by a propeller jet

Physics of Fluids, 2023
In the last two decades, many studies have been dedicated to the employment of predictive formulas able to assess the maximum scour depth produced by propeller jets. Owing to the complexity of the phenomenon, most of the literature formulas were built on empirical arguments, making them susceptible to scale issues and not fully coherent with the ...
Francesco Coscarella, Giuseppe Curulli, Nadia Penna, Roberto Gaudio   +3 more
openaire   +1 more source

Beyond the Gold Standard: Towards Industrially Viable Electrodes for Durable Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Transparent and opaque electrode materials are mapped by raw material cost per 1 m2 electrode area and retained median device efficiency after heat–light ageing. FTO offers a lower‐cost and more stable alternative to ITO, while Cr/Al provides the lowest‐cost rear electrode investigated with Au‐like stability and substantially improved durability ...
Tino Lukas, Manuel Kober‐Czerny, Ali Reza Nazari Pour, James McGettrick, Georgios Loukeris, Clemens Baretzky, Shuaifeng Hu, Junke Wang, Chia‐Yu Chang, Sam Teale, Bowei Li, Trystan M. Watson, Martin Stolterfoht, Robert L. Z. Hoye, Philippe Holzhey, Lukas Wagner, Markus Kohlstädt, Henry J. Snaith   +17 more
wiley   +1 more source

Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers [PDF]

E3S Web of Conferences, 2020
The riverbeds or sea beds are usually composed of multi-layers of sediments. The scour around bridge piers sited on such beds is vital to the bridge safety, but is still very difficult to be predicated as its complicated interaction between the flow and ...
Yue Shaolin, Zhou Huan, Zhu Wenlong, Zhang Minxi   +3 more
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Investigation on local scour downstream of adverse st

Ain Shams Engineering Journal, 2014
This paper is focused on local scour downstream of adverse stilling basins where a submerged wall jet issued from a sluice gate. Experiments were conducted in a wide range of Froude numbers, grain sizes, tailwater depths, and stilling basin slopes.
Javad Farhoudi, Hossein Khalili Shayan
doaj   +1 more source