Results 71 to 80 of about 552 (119)
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 +3 more
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Local scour modeling on the basis of scour experiments [PDF]
Acta Scientiarum Polonorum. Seria: Architectura, 2019 openaire
On river morphology and local scouring
PROCEEDINGS OF THE JAPANESE CONFERENCE ON HYDRAULICS, 1984 openaire +3 more sources
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Hydrotechnical Construction, 1975
Characteristic diagrams of the distribution of longitudinal velocities in the local scour zone at partly submerged obstructions are shown, and an equation is presented of dynamic balance of the flow around an obstruction during the the period of stabilization.
A. I. Bogomolov +4 more
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Characteristic diagrams of the distribution of longitudinal velocities in the local scour zone at partly submerged obstructions are shown, and an equation is presented of dynamic balance of the flow around an obstruction during the the period of stabilization.
A. I. Bogomolov +4 more
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Local Scour Downstream of an Apron
Journal of Hydraulic Engineering, 1985Measurements have been made of the rate of scour downstream of a rigid apron due to a jet of water issuing through a sluice opening. Experiments are carried out for various sand sizes, sluice openings, efflux velocities, and lengths of apron. Mean velocity profiles in rigid models simulating the shape of the scour hole are studied in detail.
N. M. K. Nik Hassan +1 more
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Journal of Hydraulic Research, 1992
Local scour downstream of an apron with a swept-out hydraulic jump is shown to develop very rapidly, that is in less than 1% of the time to reach the ultimate scour depth. The short-term scour although not as deep as the long-term scour, occurs much closer to the apron.
M. S. Mohamed, J. A. Mccorquodale
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Local scour downstream of an apron with a swept-out hydraulic jump is shown to develop very rapidly, that is in less than 1% of the time to reach the ultimate scour depth. The short-term scour although not as deep as the long-term scour, occurs much closer to the apron.
M. S. Mohamed, J. A. Mccorquodale
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Journal of Hydraulic Engineering, 1998
Dimensional analysis of the variables influencing local scour at skewed piers brings into issue the generality of skew factors apparently related only to skew angle, α, and pier aspect ratio, L/b, for a particular pier shape. This note discusses this issue and provides insights into flow-field and scour-geometry changes at skewed piers.
R. Ettema +3 more
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Dimensional analysis of the variables influencing local scour at skewed piers brings into issue the generality of skew factors apparently related only to skew angle, α, and pier aspect ratio, L/b, for a particular pier shape. This note discusses this issue and provides insights into flow-field and scour-geometry changes at skewed piers.
R. Ettema +3 more
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World Environmental and Water Resource Congress 2006, 2006
A methodology to predict local scour depth at a complex pier is presented that recognises the relative scouring potentials of the components of complex piers, and the transition of scouring processes occurring for varying pile-cap elevation. Scour depths are predicted over the entire range of possible pile-cap elevations using a combination of existing
Bruce Melville +2 more
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A methodology to predict local scour depth at a complex pier is presented that recognises the relative scouring potentials of the components of complex piers, and the transition of scouring processes occurring for varying pile-cap elevation. Scour depths are predicted over the entire range of possible pile-cap elevations using a combination of existing
Bruce Melville +2 more
openaire +1 more source