Results 231 to 240 of about 1,260 (261)

THE VORTEX SCOUR MECHANISM AT BRIDGE PIERS.

Proceedings of the Institution of Civil Engineers, 1981
The paper examines the problem of localised scour by analysing the cause of the scouring process itself. The scouring vortex which develops because of an upstream flow separation ahead of the pier, and which is considered to be the basic mechanism operating at bridge piers, is subjected to detailed experimental analysis.
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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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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 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
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24—THE EFFECT OF MECHANICAL ACTION ON THE SCOURING OF RAW WOOL

Journal of the Textile Institute Transactions, 1963
The effect of variations in the mechanical conditions on the scouring of raw wool was investigated with regard to detergent consumption and visual appraisal of the appearance of the scoured product. All factors apart from mechanical conditions were identical for each experiment.
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Scour mechanism around tandem piers of different shapes

Pollack Periodica
Abstract A bridge resists the dynamic pressures of flowing water while gently joining disparate places. When multiple bridge piers are placed close together, complex flow interference alters hydrodynamic forces and local scour patterns.
Malik Rahul, Panwar Anuradha
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Mechanisms of Raw Wool Scouring—The Role of the Protein Contaminant Layer

Textile Research Journal, 1983
The mechanisms of grease removal from raw wool by various scouring solutions were studied. The protein contaminant layer (PCL) played a key role and the "classical" mechanism of rolling up of the grease from the fiber was not significant in most scouring solutions. In surfactant solutions, there were four stages in the removal mechanism: (a) an initial
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Scour Mechanics of Aggregate Obstacle Fields With Application to Mine Countermeasures

1999
Abstract : We seek to understand the leading order processes and develop quantitative modeling skill for the problem of scour and burial of solid objects on a sedimentary bed in geophysical flows. (1) Identify leading order processes; (2) formulate the model and write the computer code; (3) establish a database with seasonal and climatic variability of
Scott A. Jenkins, Douglas L. Inman
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Effects of seabed geotechnical properties on scour mechanism at the pile in non-cohesive soils: Experimental study

Ocean Engineering, 2022
Xuguang Chen, Xixi Liu, Fengpeng Zhang   +2 more
exaly  

The Mechanics of Scour in the Marine Environment

2002
B Mutlu Sumer, Jørgen Fredsøe
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