Results 11 to 20 of about 669 (217)
Scour depth beneath a pipeline undergoing forced vibration
Theoretical and Applied Mechanics Letters, 2015 This paper studies the coupling effect of the pipeline vibration on the seabed scour. A vertical two-dimensional model is applied to numerically investigate the local scour below a vibrating pipeline with different amplitudes and periods. Using the scour
Y. Luan, D. Liang, R. Rana
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Visualization Tests on Variation of Scour Front under a Pipeline in Steady Currents
Journal of Marine Science and Engineering, 2019 The intersection of the span shoulder and the scour hole under a pipeline, also called the scour front, can affect the scour hole extension rate and the bearing capacity of the span shoulder, which is associated with pipeline spanning and failure ...
Liquan Xie, Yehui Zhu, Tsung-Chow Su
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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
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International Journal of Distributed Sensor Networks, 2013 This work presents an offshore pipeline scour monitoring sensor network system based on active thermometry. The system consists of thermal cables, data acquisition unit, and data processing unit.
Xuefeng Zhao +5 more
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Numerical Investigations on Scour and Flow around Two Crossing Pipelines on a Sandy Seabed
Journal of Marine Science and Engineering, 2022 When a pipeline is laid on the seabed, local scour often occurs below it due to sea currents. In practical engineering, there are some cases that two pipelines laid on the seabed need to cross with each other.
Fan Zhang +5 more
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Advances in Civil Engineering, 2021 Among the various geological disasters that threaten the safe operation of long-distance oil and gas pipelines, water-damage disasters are numerous and widely developed.
Fan Cui +5 more
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Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil
Journal of Marine Science and Engineering, 2022 A novel scour protection approach for pipeline using the Ionic Soil Stabilizer (ISS) solidified soil was proposed in this study. The ISS-solidified slurry can be poured adjacent to the pipeline immediately after it was placed, or in the growing scour ...
Ruigeng Hu +3 more
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Scale Model Experiment on Local Scour around Submarine Pipelines under Bidirectional Tidal Currents
Journal of Marine Science and Engineering, 2021 In nearshore regions, bidirectional tidal flow is the main hydrodynamic factor, which induces local scour around submarine pipelines. So far, most studies on scour around submarine pipelines only consider the action of unidirectional, steady currents and
Zhiyong Zhang +4 more
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Experimental investigation of the impact of the spoiler and piggyback line on scour holes of the parallel pipe lines under the erodible bed [PDF]
مهندسی عمران شریف, 2022 The bed formations of submarine pipelines models were measured to investigate the effect of design parameters such as the distance between two submarine pipelines and also the effect of adjusted rectangular spoiler due to different angles of adjustment ...
M. Damroodi, K. Esmaili, S.H. Rajaie
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Propagation modes of 3D scour below a submarine pipeline in oblique steady currents and waves [PDF]
, 2016 This paper presents experimental results on 3D scour propagation along a pipeline under oblique-incidence currents and waves. Different modes of 3D scour propagation were discovered after the local scour was initiated below the pipeline.
Cheng L, 臧志鹏, Tang G
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