Results 271 to 280 of about 6,257,228 (299)
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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.
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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.
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Local Scour Around Cylindrical Piers
Journal of Hydraulic Research, 1977A “state of the art“ report on the subject of local scour around cylindrical piers is given here. After a description of the scouring process, a critical review of literature on model and field data is presented, and the empirical data are compared with theoretical considerations.
H. N. C. Breusers +2 more
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Local Scour Around Bridge Piers
Journal of the Hydraulics Division, 1969Local scour caused by the horseshoe vortex system which forms at the base of the piers is considered. Piers which induce a pressure field strong enough to cause the formulation of the horseshoe vortex system are termed blunt nosed; all others being classed as sharp-nosed piers.
Hsieh W. Shen +2 more
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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
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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
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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.
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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.
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Effects of Local Scour on Failure Envelopes of Offshore Monopiles and Caissons
Applied Ocean Research, 2022Ping Yi, Xiaowei Feng, Congcong Han
exaly
Local scour and scouring tests in a vicinity of large diameter offshore caisson
This paper describes the results of the model tests of sea bottom scouring in the vicinity of large diameter cylindrical offshore structures. The main goal of this investigation was two fold: firstly to study the sea bottom scouring around large, caisson type platforms in the arctic shallow water regions and secondly to find the suitable scouring ...openaire +2 more sources