Results 1 to 10 of about 1,045 (261)
The 3-D Morphology Evolution of Spur Dike Scour under Clear-Water Scour Conditions [PDF]
Water (Switzerland), 2018 By changing the alignment angle of spur dike, this study focused on the evolution of scour hole morphology in three alignments under clear-water scour conditions, including the 3-D structure of the scour hole, 2-D profile morphological evolution process and the evolution characteristics of the local bed shear stress.
Zhang Xianqi
exaly +2 more sources
Scour Evolution Downstream of Submerged Weirs in Clear Water Scour Conditions
Water (Switzerland), 2019 Although weirs or dikes in the riverine and coastal environments are frequently overtopped, few studies have hitherto examined the evolution of the scour process downstream of these structures under the submerged condition. This paper presents an experimental investigation on time evolution of the scour process downstream of submerged weirs with a ...
Yee Meng Chiew, Dawei Guan, Guan Dawei
exaly +3 more sources
Effect of debris accumulation on scour evolution at bridge pier in bank proximity
Journal of Hydrology and Hydromechanics, 2021 Large debris transported by flood affects scour features at bridge piers and increases the risks of structural failure. Geometric characteristics of the debris and the relative position of the pier with respect to the river bank are important parameters ...
Palermo Michele +2 more
doaj +2 more sources
Morphology Evolution of Three-Dimensional Scours Under Submerged Jets
Frontiers in Earth Science, 2022 Through physical model tests, the three-dimensional morphological features and their scale changes with time were measured and comparatively analyzed during the scouring of a homogeneous granular bed surface using submerged oblique jets.
Ke-ling Chen, Wang-ru Wei, Jun Deng
doaj +2 more sources
Water Resources ResearchA high‐fidelity 3D computational model, ibScourFoam, was employed to investigate sediment transport and scour around solid and porous hydraulic structures, specifically focusing on the differences induced by structural porosity.
Seyedeh Azadeh Mousavi Darzikolaei +1 more
doaj +2 more sources
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. +2 more
doaj +1 more source
The time evolution of scour around offshore structures [PDF]
Proceedings of the Institution of Civil Engineers - Maritime Engineering, 2010 This paper describes the development of an engineering model to predict the development of scour evolution through time around an offshore structure under current, wave and combined wave–current flows. The model has been tested against a range of data as well as being run for idealised tests.
J. M. Harris +2 more
openaire +1 more source
Sensors, 2021 Scour around bridge piers remains the leading cause of bridge failure induced in flood. Floods and torrential rains erode riverbeds and damage cross-river structures, causing bridge collapse and a severe threat to property and life.
Yung-Bin Lin +6 more
doaj +1 more source
Experimental investigation of bed evolution resulting from dam break [PDF]
Journal of Hydraulic Structures, 2020 This study examines the relations of structures and shapes of streambed evolution after dam break floods. A flume was used to simulate dam-break floods with variations of initial upstream water levels and variance, from uniform to graded, of the bed ...
Khabat Khosravi +4 more
doaj +1 more source
Evolution features of riverbeds near underwater crossing line pipes: An experimental study
Natural Gas Industry B, 2020 It is of important significance to study the evolution law of the riverbed near underwater crossing line pipes for ensuring the safe operation of oil and gas pipelines and reducing the risk of damage by water flood disasters.
Qian Yang +3 more
doaj +1 more source