Results 211 to 220 of about 5,866,207 (252)
Some of the next articles are maybe not open access.
Local scour at open-channel junctions
Journal of Hydraulic Research, 2010High bed-shear stress resulting from secondary flows and velocity increase at a channel junction cause local erosion and deposition in natural rivers and earth-lined channels. Herein, the scour patterns at the junction of two loose bed channels were studied under clear-water conditions.
S. Mahmood Borghei +1 more
openaire +1 more source
2023
The investigation of flow intensity is crucial in understanding the ship propeller jet scouring process in ship manoeuvring areas, waterways path, and navigation channels. Although still water conditions are often used in studies, they do not accurately represent real‐life scenarios.
FERRARO Domenico +3 more
openaire +1 more source
The investigation of flow intensity is crucial in understanding the ship propeller jet scouring process in ship manoeuvring areas, waterways path, and navigation channels. Although still water conditions are often used in studies, they do not accurately represent real‐life scenarios.
FERRARO Domenico +3 more
openaire +1 more source
Local Scour Downstream of Hydraulic Structures
Journal of Hydraulic Engineering, 1995An analysis of the problem of local scour downstream of hydraulic structures is presented here. This paper briefly discusses the functional design of the bed protection downstream of large hydraulic structures. Phases of the scour process and transport mechanism are treated in an introductory manner.
Gijs J. C. M. Hoffmans +1 more
openaire +1 more source
Local Scour at Bridge Abutments
Journal of Hydraulic Engineering, 1992Laboratory data for local scour depth at bridge abutments are presented. These include sufficient data to demonstrate the effects on scour depth of abutment length, flow depth, and abutment shape and alignment. In addition, some data for the effects of sediment characteristics, flow intensity, and approach channel geometry are given.
openaire +1 more source
Local Scour at Piled Bridge Foundations
Journal of Hydraulic Engineering, 1998An experimental study of local scour around rectangular bridge piers founded on two circular cylindrical piles, where the piles are exposed as a result of scouring, is presented. The problem is the interaction of two widths (pier and piles) if the interface is set at different elevations with respect to the bed.
J. P. Martin-Vide +2 more
openaire +1 more source
1984
The problem of local scour appears deceptively simple at the first sight, but continues to defy attempts of a rational solution. Due to the complex nature of the problem and a large number of variables involved a purely theoretical approach has been extremely difficult.
openaire +1 more source
The problem of local scour appears deceptively simple at the first sight, but continues to defy attempts of a rational solution. Due to the complex nature of the problem and a large number of variables involved a purely theoretical approach has been extremely difficult.
openaire +1 more source
Overlooked Local Sediment Scour Mechanism
Transportation Research Record: Journal of the Transportation Research Board, 2004A heretofore overlooked mechanism is described for the removal of sediment in the vicinity of a structure, such as a bridge pier, located in erodible sediment and subjected to water flow. The strength of this mechanism depends on, among other things, the ratio of structure width to sediment grain size, b/D 50
openaire +1 more source
2004
The present study investigates with laboratory experiments the scour downstream of a sill, followed by a rigid apron, in clear water scour conditions. Nine experiments were run, changing the discharge and the tailwater depth of the flow. The temporal evolution of the scour was recorded by a video camera and measured using image analysis techniques. The
ADDUCE, Claudia, MELE P.
openaire +1 more source
The present study investigates with laboratory experiments the scour downstream of a sill, followed by a rigid apron, in clear water scour conditions. Nine experiments were run, changing the discharge and the tailwater depth of the flow. The temporal evolution of the scour was recorded by a video camera and measured using image analysis techniques. The
ADDUCE, Claudia, MELE P.
openaire +1 more source
Clearwater Local Scour at Complex Piers
Journal of Hydraulic Engineering, 2005A new methodology to predict local scour depth at a complex pier is presented herein that combines existing expressions for scouring respectively at uniform piers, caisson-founded piers, pile groups with debris rafts, and pile groups alone. The method recognises the relative scouring potentials of the components of complex piers and the transition of ...
openaire +1 more source