Results 281 to 290 of about 8,902,814 (338)

Mechanism of scour around two piers

Pollack Periodica
AbstractScour around the bridge piers is the main cause of bridge failure below any bridge pier placed within the waterways. It is more than hundred years back a number of researchers described the vortex shedding phenomenon and the resulting Aeolian tones from a circular cylinder.
Rahul Malik, Baldev Setia
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A review of the fluid mechanics of ocean scour

Ocean Engineering, 1982
Abstract The processes of scour hole formation are divided into components and discussed. The descriptive physics of ocean boundary layer flow and sediment dynamics are used to detail the similarities and differences between the processes of scour hole formation in marine and river environments.
A.W. Niedoroda, Charles Dalton
openaire   +1 more source

Mechanics of Pipeline Scour Propagation in the Spanwise Direction

Journal of Waterway, Port, Coastal, and Ocean Engineering, 2015
AbstractThis paper presents the results of an experimental study on the mechanics of pipeline scour propagation in the spanwise direction. The experiments were conducted with uniform sediment under a unidirectional steady current in clear-water conditions.
Yushi Wu, Yee-Meng Chiew
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Mechanism of rock-bed scour due to impinging jet

Journal of Hydraulic Research, 2010
Scour of rock bed downstream of high dams is mainly caused by the transient forces as a result of the propagation of fluctuating pressures, which is significantly controlled by the rock fracture-structure. The physical mechanism of rock disintegration and scour pool forming are analysed herein by considering the fracture-structure of rock bed.
Aihua Li, Peiqing Liu
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Mechanics of Local Scour Around Submarine Pipelines

Journal of Hydraulic Engineering, 1990
The primary objective of this study is to improve understanding of the mechanism causing scour in unidirectional current. Experiments have shown how local scour develops around submarine pipelines in noncohesive sediments. The study shows that piping is the dominant cause of the initiation of scour.
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Mechanics of Three-Dimensional Pipeline Scour in UnidirectionalSteady Current

Journal of Pipeline Systems Engineering and Practice, 2013
The three-dimensional flow velocity components at the span shoulder, which is located at the junction of a submarine pipeline and the associated scour hole, are measured in unidirectional steady current in order to investigate the flow structure and mechanics of the lateral propagation of a three-dimensional pipeline-scour hole.
Yushi Wu, Yee-Meng Chiew
openaire   +1 more source

Scour and Burial Mechanics of Objects in the Nearshore

IEEE Journal of Oceanic Engineering, 2007
A process-based, numerical, hydrodynamic vortex lattice mine scour/burial model (VORTEX) is presented that simulates scour and burial of objects of arbitrary shape resting on a granular bed in the nearshore. There are two domains in the model formulation: a far-field where burial and exposure occur due to changes in the elevation of the seabed and a ...
Scott A. Jenkins, Douglas L. Inman, Michael D. Richardson, Thomas F. Wever, Joseph Wasyl   +4 more
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Scour Mechanics of a Tsunami-Like Bore around a Square Structure

Journal of Waterway, Port, Coastal, and Ocean Engineering, 2022
Abstract This study presents a detailed analysis of the mechanics of scour around a square structure due to an inland-propagating tsunami-like bore using physical modeling.
Razieh Mehrzad, Ioan Nistor, Colin Rennie   +2 more
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FUNDAMENTAL RESEARCH ON THE SCOURING MECHANICS

Transactions of the Japan Society of Civil Engineers, 1958
Scouring is generally a phenomenon that takes place by running water on the movable bed. The external force in this case is given both as the shearing force and the normal force, therefore, various kinds of scouring arise from the combination of these two sorts of force.For the analytical research of the scouring phenomenon, we are required to reveal ...
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Mechanical Analysis on the Scour of Submarine Pipeline

Advanced Materials Research, 2013
The reason about the scour of the submarine pipeline is researched in this paper. Through the mechanical analysis about the sand grain in the downstream of the pipe, the critical condition about of scour start is derived. The balance condition about the scour is studied.
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