Results 21 to 30 of about 5,903,801 (203)
Numerical Simulation on the Local Scour Processing and Influencing Factors of Submarine Pipeline
Journal of Marine Science and Engineering, 2023 To investigate the different influencing characteristics of local scour around submarine pipelines, hydrodynamic and sediment transport two-dimensional models based on Flow-3D are used to numerically simulate the local scour around the pipeline under ...
Ke Hu, Xinglan Bai, Murilo A. Vaz
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Localized Turbulent Flows on Scouring Granular Beds [PDF]
Physical Review Letters, 2005 In many applications a sustained, localized turbulent flow scours a cohesionless granular bed to form a pothole. Here we use similarity methods to derive a theoretical formula for the equilibrium depth of the pothole. Whereas the empirical formulas customarily used in applications contain numerous free exponents, the theoretical formula contains a ...
Gioia, Gustavo, Bombardelli, Fabian A.
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Ain Shams Engineering Journal, 2018 Bridges are one of the important structures across the Nile River; these bridges may be subjected to collapse if there is no monitoring or safety precaution for local scour during high floods.
Ahmed Moustafa Ahmed Moussa
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Local scour around a bridge pier under ice-jammed flow condition – an experimental study
Journal of Hydrology and Hydromechanics, 2021 The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun +5 more
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Shuili Shuiyun Gongcheng Xuebao, 2023 Scour is one of the key factors that should be considered in the design process of offshore wind turbine (OWT) monopile foundations. However, the geometry of local scour pit and embedded length-to-diameter ratio of pile (L/D) are always ignored in ...
ZHANG Rongsheng +4 more
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Experimental investigation of local scour around multi-vents bridge piers
Alexandria Engineering Journal, 2015 The harmful effect of local scour around bridge piers and abutments can induce high maintenance costs or even bridge collapse resulting in the disturbance of traffic and possibly human losses.
Yasser A. Mohammed +2 more
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Local scour around two pipelines in tandem in steady current
, 2014 In this study, local scour around two identical pipelines in a tandem arrangement are investigated numerically. Two-dimensional Reynolds-averaged Navier-Stokes (RANS) equations are solved for simulating the flow around the pipelines and the conservation ...
J Thapa +7 more
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Local scour at abutments: A review
Sadhana, 2004 Failure of bridges due to local scour has motivated many investigators to explore the causes of scouring and to predict the maximum scour depth at abutments. In this paper, a detailed review of the up-to-date work on scour at abutments is presented including all possible aspects, such as flow field, scouring process, parameters affecting scour depth ...
Abdul Karim Barbhuiya, Subhasish Dey
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Advances in Bridge EngineeringCofferdam is widely employed in the construction of underwater bridge foundations. Its crucial attribute lies in providing a dedicated platform for construction activities and enhancing the water resistance dimensions in structural design, consequently ...
Pengxin Ran +5 more
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Laboratory Study of Local Scour Around an Array of Pile Groups in Clear-Water Scour Conditions
Journal of Marine Science and EngineeringCurrent-induced local scour around pile groups weakens the capacity of structures. In this paper, experimental tests of local scour around an array of 5 × 5 pile groups were conducted in a steady current in a hydraulic flume.
Ming Gong +7 more
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