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Comparative analysis of sea wave dissipation induced by three flow mechanisms.

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Title: Comparative analysis of sea wave dissipation induced by three flow mechanisms.
Authors: POSTACCHINI, MATTEO1 m.postacchini@univpm.it, BROCCHINI, MAURIZIO1 m.brocchini@univpm.it, CORVARO, SARA1 s.corvaro@univpm.it, LORENZONI, CARLO1 c.lorenzoni@univpm.it, MANCINELLI, ALESSANDRO1 a.mancinelli@univpm.it
Source: Journal of Hydraulic Research / Journal de Recherches Hydraulique. Aug2011, Vol. 49 Issue 4, p554-561. 8p. 1 Black and White Photograph, 5 Diagrams, 4 Charts, 3 Graphs.
Subjects: Comparative studies, Ocean waves, Energy dissipation, Ocean bottom, Velocimetry, Breakwaters
Abstract: A comparative analysis is performed on the wave energy dissipation efficiency on various coastal protection devices. In-house experimental data on the performance of two innovative coastal defence methods and of traditional submerged breakwaters have been used. The analysis provides a quantitative comparison of the efficiency of wave dissipators based on either wave-breaking turbulence, near-bed turbulence, or inside-seabed turbulence decay. The comparison is made on the basis of wave height decay patterns described as a function of suitable dimensionless parameters. The dimensionless volume of maximum turbulence decay is found to be a useful parameter for the analysis. Efficiencies in reducing the intensity of the incident waves are measured by the wave transmission coefficient, which is found to range between 0.4 and 1.0. Submerged breakwaters were found to be the most efficient wave dissipators, especially for large waves, while comparable efficiencies are provided by the three mechanisms under analysis if the flow is forced by moderate waves. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Hydraulic Research / Journal de Recherches Hydraulique is the property of Taylor & Francis Ltd 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 63594360
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Comparative analysis of sea wave dissipation induced by three flow mechanisms.
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  Data: <searchLink fieldCode="AR" term="%22POSTACCHINI%2C+MATTEO%22">POSTACCHINI, MATTEO</searchLink><relatesTo>1</relatesTo><i> m.postacchini@univpm.it</i><br /><searchLink fieldCode="AR" term="%22BROCCHINI%2C+MAURIZIO%22">BROCCHINI, MAURIZIO</searchLink><relatesTo>1</relatesTo><i> m.brocchini@univpm.it</i><br /><searchLink fieldCode="AR" term="%22CORVARO%2C+SARA%22">CORVARO, SARA</searchLink><relatesTo>1</relatesTo><i> s.corvaro@univpm.it</i><br /><searchLink fieldCode="AR" term="%22LORENZONI%2C+CARLO%22">LORENZONI, CARLO</searchLink><relatesTo>1</relatesTo><i> c.lorenzoni@univpm.it</i><br /><searchLink fieldCode="AR" term="%22MANCINELLI%2C+ALESSANDRO%22">MANCINELLI, ALESSANDRO</searchLink><relatesTo>1</relatesTo><i> a.mancinelli@univpm.it</i>
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  Data: <searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink><br /><searchLink fieldCode="DE" term="%22Ocean+waves%22">Ocean waves</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Ocean+bottom%22">Ocean bottom</searchLink><br /><searchLink fieldCode="DE" term="%22Velocimetry%22">Velocimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Breakwaters%22">Breakwaters</searchLink>
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  Label: Abstract
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  Data: A comparative analysis is performed on the wave energy dissipation efficiency on various coastal protection devices. In-house experimental data on the performance of two innovative coastal defence methods and of traditional submerged breakwaters have been used. The analysis provides a quantitative comparison of the efficiency of wave dissipators based on either wave-breaking turbulence, near-bed turbulence, or inside-seabed turbulence decay. The comparison is made on the basis of wave height decay patterns described as a function of suitable dimensionless parameters. The dimensionless volume of maximum turbulence decay is found to be a useful parameter for the analysis. Efficiencies in reducing the intensity of the incident waves are measured by the wave transmission coefficient, which is found to range between 0.4 and 1.0. Submerged breakwaters were found to be the most efficient wave dissipators, especially for large waves, while comparable efficiencies are provided by the three mechanisms under analysis if the flow is forced by moderate waves. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Journal of Hydraulic Research / Journal de Recherches Hydraulique is the property of Taylor & Francis Ltd 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: 10.1080/00221686.2010.544143
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 554
    Subjects:
      – SubjectFull: Comparative studies
        Type: general
      – SubjectFull: Ocean waves
        Type: general
      – SubjectFull: Energy dissipation
        Type: general
      – SubjectFull: Ocean bottom
        Type: general
      – SubjectFull: Velocimetry
        Type: general
      – SubjectFull: Breakwaters
        Type: general
    Titles:
      – TitleFull: Comparative analysis of sea wave dissipation induced by three flow mechanisms.
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          Name:
            NameFull: POSTACCHINI, MATTEO
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            NameFull: BROCCHINI, MAURIZIO
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            NameFull: CORVARO, SARA
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            NameFull: LORENZONI, CARLO
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            NameFull: MANCINELLI, ALESSANDRO
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              M: 08
              Text: Aug2011
              Type: published
              Y: 2011
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              Value: 49
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            – TitleFull: Journal of Hydraulic Research / Journal de Recherches Hydraulique
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