Results 21 to 30 of about 2,577,284 (154)

Unresolved CFD and DEM Coupled Simulations on Scour around a Subsea Pipeline

Journal of Marine Science and Engineering, 2022
In this paper, numerical studies were carried out on scour around a subsea pipeline. A coupled solver between computational fluid dynamics (CFD) and discrete element method (DEM) was selected to simulate fluid flow and particle interactions.
Seongjin Song, Sunho Park
doaj   +1 more source

Laboratory Evaluation of Time-Domain Reflectometry for Bridge Scour Measurement: Comparison with the Ultrasonic Method

Advances in Civil Engineering, 2010
Bridge scour is a major factor causing instability of bridges crossing waterways. Excessive scour contributes to their high construction and maintenance costs.
Xinbao Yu, Xiong Yu
doaj   +1 more source

Iceberg Scour and Shell Damage in the Antarctic Bivalve Laternula elliptica [PDF]

, 2012
We document differences in shell damage and shell thickness in a bivalve mollusc (Laternula elliptica) from seven sites around Antarctica with differing exposures to ice movement. These range from 60% of the sea bed impacted by ice per year (Hangar Cove,
Peck, Lloyd S., Lloyd S Peck, Simon A Morley, Hoffman, Joseph ; https://orcid.org/, Hoffman, Joseph I., Melody S Clark, Clark, Melody S., Harper Elizabeth M., Peck, L, Harper, L, Hoffman Joseph I., Harper, Elizabeth M., Elizabeth M Harper, Clark Melody S., Peck Lloyd S., Philipp, Eva E. R., Morley, Simon A., Eva E R Philipp, Morley Simon A., Clark, M S, Joseph I Hoffman, Philipp Eva E. R., Morley, S   +22 more
core   +2 more sources

Scour near low-crested breakwaters: review and technical challenges

Applied Ocean Research
Low-crested breakwaters are widely used structures for coastal protection, but they are vulnerable to scouring caused by wave and current action. This paper analyses information from available mobile bed physical models, the progress made in recent years
Francisco Pinto, Paulo Rosa-Santos, Javier L. Lara, Victor Ramos   +3 more
doaj   +1 more source

Numerical investigation of wave-induced local scour around a submarine pipeline

, 2014
A two-dimensional numerical model is developed in this work to predict the local scour around subsea pipelines induced by the orbital fluid motion due to free-surface water waves. Instead of being simplified as an oscillatory flow, the motion of the wave
Lin Lu, Ming-Ming Liu, Liu, Mingming, Zhao, Ming (R16667), Lu, Lin, Bin Teng, Ming Zhao, Tang, Guoqiang, Guo-Qiang Tang, Teng, Bin   +9 more
core   +1 more source

Influence of propeller clearance on the jet scour process in restricted water

International Journal of Sediment Research
Rapid development of inland waterways and marine transportation has resulted in the construction of large ships and an increase in ship speed. Consequently, severe local scour erosion of restricted water beds occurs due to propellers, endangering the ...
Wei Huang, Shouqian Li, Yongjun Lu, Canhua Zhou, Dewei Mu, Xingnian Liu   +5 more
doaj   +1 more source

Numerical Analysis of Local Scour of the Offshore Wind Turbines in Taiwan

Journal of Marine Science and Engineering, 2023
Rapid expansions of the offshore wind industry have stimulated a renewed interest in the behavior of offshore wind turbines. Monopile, tripod, and jack-up wind turbines support most offshore wind turbines.
Thi-Hong-Nhi Vuong, Tso-Ren Wu, Yi-Xuan Huang, Tai-Wen Hsu   +3 more
doaj   +1 more source

Review of Research on Foundation Scour of River-Crossing Bridges [PDF]

长江科学院院报
Foundation scour is one of the primary causes of hydraulic failures in river-crossing bridges. By integrating flume experiments, prototype observations, numerical simulations, and artificial intelligence methods, this study reviews research on foundation
WANG Lu, LIU Hong-wei, WEI Kai, Bruce Melville, NIE Rui-hua
doaj   +1 more source

Scour evolution for steady and unsteady flow conditions downstream of Type A piano key weirs

Journal of Hydrology and Hydromechanics
For the first time a comprehensive analysis for steady and unsteady flow conditions was performed of timedependent scour processes in non-cohesive sediment downstream of a Type A piano key weir.
Panthi Manisha, Crookston Brian Mark, Palermo Michele   +2 more
doaj   +1 more source

Equilibrium scour morphology downstream of rock sills under unsteady flow conditions

E3S Web of Conferences, 2018
The present study aims to analyze the equilibrium scour morphology occurring downstream of rock-made sills with different shapes, under different inflow conditions. Namely, experimental tests were conducted under both steady and unsteady flow conditions.
Pagliara Stefano, Palermo Michele
doaj   +1 more source