Results 301 to 310 of about 19,764 (340)

Ice Scours as Trapping Mechanism for Shallow Gas

Proceedings, 2013
Shallow gas is commonly found on the Norwegian Continental Shelf and is a potential geohazard for drilling operations. Examples of shallow gas in Upper Pliocene sediments, in the Central North Sea is presented, and a model for how buried ice scours can act as a trapping mechanism for shallow gas is proposed.
K. Haavik, M. Landrø
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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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Overlooked Local Sediment Scour Mechanism

Transportation Research Record: Journal of the Transportation Research Board, 2004
A 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/D50.
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Mechanisms in anaerobic bioflocculation of wool scouring effluent

Water Research, 1994
Abstract The emulsified grease in wool scouring effluent (WSE) was demonstrably removed by bioflocculation under anaerobic conditions. The addition of anaerobic bacteria from biogas digestion to WSE resulted in grease reduction of 60–80% from the supernatant.
Lapsirikul, W., Ho, G., Cord-Ruwisch, R.
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Tsunami Scour Mechanisms Around a Cylinder

2001
The scouring mechanism due to tsunami run-up around a vertical cylinder was investigated experimentally using a large-scale tsunami experimental facility. A variety of solitary waves were generated and allowed to run up onto a uniformly sloping sandy beach.
Harry Yeh, Fuminori Kato, Shinji Sato
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Mechanism of aerobic biological destabilisation of wool scour effluent emulsions

Water Research, 2005
Wool scouring effluent is a highly polluted industrial wastewater in which the main pollutant, wool wax, is held in a stable oil-in-water emulsion by non-ionic detergent. The use of microbial action to cause emulsion destabilisation has been proposed as a new treatment strategy for this effluent stream. This strategy aims at improving aerobic treatment
Poole, A.J., Cord-Ruwisch, R., Jones, F.W.   +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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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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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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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