On the onset of pipeline scouring: Reconciling waves and currents forcing.

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Title: On the onset of pipeline scouring: Reconciling waves and currents forcing.
Authors: Marini, Francesco1 (AUTHOR) f.marini@staff.univpm.it, Postacchini, Matteo1 (AUTHOR), Pizzigalli, Claudia2 (AUTHOR), Badalini, Maurizio2 (AUTHOR), Corvaro, Sara1 (AUTHOR), Brocchini, Maurizio1 (AUTHOR)
Source: Coastal Engineering. Jun2024, Vol. 190, pN.PAG-N.PAG. 1p.
Subjects: Wave forces, Structural stability, Evaluation methodology, Physics
Abstract: The combined action of waves and currents can lead to the generation of freespans that have significant influence on both pipeline on-bottom stability and structural integrity. Several studies have been carried out since the 80's to analyse the onset of the scour process and the related phenomena in the presence of either waves or currents, while only a few studies regard the combination of waves and currents. Moreover, the main empirical expressions coming from such studies cannot adequately represent the physics of the phenomena and lead to non-conservative results. For that purpose, a reanalysis of existing datasets on the onset of scour due to waves and/or currents has been carried out to obtain a coherent method for the evaluation of the critical embedment associated to such mixed flow conditions. In addition, an analytical study has been used to quantify the Keulegan–Carpenter parameter when waves are combined with currents, for a more correct application of such empirical formulas. These results will be integrated into a probabilistic model for the long-time evolution of freespans for the evaluation of the structural stability of pipelines in the marine environment, although the present approach can be exploited for a broader range of offshore applications that deal with the combined action of waves and currents. • Re-analysis of existing approaches for the onset of scour evaluation under combined waves and currents. • Development of a new uniform method to evaluate the waves plus current scour onset. • Analysis of the main flow/sediment parameters related to the combined action of waves and current. [ABSTRACT FROM AUTHOR]
Copyright of Coastal Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 176809930
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  Data: On the onset of pipeline scouring: Reconciling waves and currents forcing.
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  Data: <searchLink fieldCode="AR" term="%22Marini%2C+Francesco%22">Marini, Francesco</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> f.marini@staff.univpm.it</i><br /><searchLink fieldCode="AR" term="%22Postacchini%2C+Matteo%22">Postacchini, Matteo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pizzigalli%2C+Claudia%22">Pizzigalli, Claudia</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Badalini%2C+Maurizio%22">Badalini, Maurizio</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Corvaro%2C+Sara%22">Corvaro, Sara</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brocchini%2C+Maurizio%22">Brocchini, Maurizio</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Coastal+Engineering%22">Coastal Engineering</searchLink>. Jun2024, Vol. 190, pN.PAG-N.PAG. 1p.
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  Label: Abstract
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  Data: The combined action of waves and currents can lead to the generation of freespans that have significant influence on both pipeline on-bottom stability and structural integrity. Several studies have been carried out since the 80's to analyse the onset of the scour process and the related phenomena in the presence of either waves or currents, while only a few studies regard the combination of waves and currents. Moreover, the main empirical expressions coming from such studies cannot adequately represent the physics of the phenomena and lead to non-conservative results. For that purpose, a reanalysis of existing datasets on the onset of scour due to waves and/or currents has been carried out to obtain a coherent method for the evaluation of the critical embedment associated to such mixed flow conditions. In addition, an analytical study has been used to quantify the Keulegan–Carpenter parameter when waves are combined with currents, for a more correct application of such empirical formulas. These results will be integrated into a probabilistic model for the long-time evolution of freespans for the evaluation of the structural stability of pipelines in the marine environment, although the present approach can be exploited for a broader range of offshore applications that deal with the combined action of waves and currents. • Re-analysis of existing approaches for the onset of scour evaluation under combined waves and currents. • Development of a new uniform method to evaluate the waves plus current scour onset. • Analysis of the main flow/sediment parameters related to the combined action of waves and current. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Coastal Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.coastaleng.2024.104507
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Wave forces
        Type: general
      – SubjectFull: Structural stability
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      – SubjectFull: Evaluation methodology
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      – SubjectFull: Physics
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      – TitleFull: On the onset of pipeline scouring: Reconciling waves and currents forcing.
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            NameFull: Marini, Francesco
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            NameFull: Postacchini, Matteo
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            NameFull: Pizzigalli, Claudia
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            NameFull: Corvaro, Sara
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            – D: 01
              M: 06
              Text: Jun2024
              Type: published
              Y: 2024
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              Value: 190
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