Results 81 to 90 of about 6,112,351 (103)

Flow and likely scour around three dimensional seabed structures evaluated using RANS CFD

, 2007
When a structure is placed on the seabed, tidal or other marine current induce areas of flow acceleration and deceleration. This may result in movement of the seabed substrate (often sand) near the structure.
Turnock, S.R., de Hauteclocque, G., Lambkin, D.O., Dix, J.   +3 more
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Local Scour at the Elliptical Guide Banks

Scour development in time at the elliptical guide banks during the floods was studied. The dimensions of the upper part of the elliptical guide banks, namely the turn and length, were calculated by the Latishenko method.
Govša, Jeļena, Neilands, Roberts, Gjunsburgs, Boriss   +2 more
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Scour, Local and Critical Velocities at the Abutments on Plain Rivers

Local flow modification near engineering structures such as – local velocity, flow separation, circulation, vortex structures, and increased turbulence, leads to local scour near foundations.
Jaudzems, Gints, Gjunsburgs, Boriss
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Estimation of Local Scour Dimension below Siphon Spillway with the Ski-jump Bucket Energy Dissipater Using the Group Method of Data Handling (GMDH)

علوم آب و خاک, 2018
The investigation of local scour below hydraulic structures is so complex that makes it difficult to establish a general model to provide an accurate estimation for the local scour dimension.
K. Qaderi, R. Jafarinia, B. Bakhtiari, Z. Afzali Goruh   +3 more
doaj  

Local Scour at Elliptical Guide Banks in Plain Rivers

The scour development in floods at abutments (Gjunsburgs & Neilands 2001, 2004, 2005, Gjunsburgs et al. 2004, 2005, 2006) and at elliptical guide banks is studied. The scour hole extents at abutments and guide banks are different. At the upstream head of
Govša, Jeļena, Neilands, Roberts, Gjunsburgs, Boriss   +2 more
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Riverbed Layering Impact on Scour at the Abutments

The damage of the engineering structures caused by scour leads to considerable economical and envi-ronmental losses. The local flow modification and its changes in time during the floods, as well as local geological conditions, as riverbed layering, type
Govša, Jeļena, Jaudzems, Gints, Gjunsburgs, Boriss   +2 more
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SCOUR AT ELLIPTICAL GUIDE BANKS UNDER STRATIFIED BED CONDITIONS: EQUILIBRIUM STAGE

The scour development in time and the equilibrium stage of scour near abutments and guide banks with a uniform layer and stratified bed conditions have been studied.
Jaudzems, Gints, Gjunsburgs, Boriss, Govsha, Elena   +2 more
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Scour near Engineering Structures under Stratified Bed Conditions

A hydraulic structures in flow (intakes, abutments, spurs, guide banks) damage because of scour at foundations at stratified river bed conditions is an important problem.
Govša, Jeļena, Gjunsburgs, Boriss
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Stratified Bed Conditions Impact on Scour Development at Engineering Structures

River flow contraction by engineering structures (intakes, embankment, abutments, spurs, guide banks) to flow leads to flow pattern modification, concentration of streamliners, sharp drop in water level, local increase in velocity, and development of ...
Govša, Jeļena, Gjunsburgs, Boriss
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Global and local scour at pile groups

, 2005
This paper presents the results of an experimental investigation on scour around pile groups with different configurations exposed to steady current. Two kinds of tests were carried out: (1) Rigid-bed tests, and (2) Actual scour tests.
Bundgaard, Klavs, Sumer, B. Mutlu, Fredsøe, Jørgen   +2 more
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