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Two-parameter wave reflection coefficient for an impermeable breakwater armored with Accropodes.

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Title: Two-parameter wave reflection coefficient for an impermeable breakwater armored with Accropodes.
Authors: Bai, Yefei1,2,3 (AUTHOR) yfbai@zju.edu.cn, Fang, Xin1,2 (AUTHOR) fangxin1122@163.com, Liu, Jinwei2,3 (AUTHOR), Zhou, Yifan2 (AUTHOR), Wei, Xiaoran2 (AUTHOR), Zhi, Honghuan2 (AUTHOR)
Source: Ocean Engineering. May2024, Vol. 300, pN.PAG-N.PAG. 1p.
Subjects: Reflectance, Breakwaters, Fluid-structure interaction, Water waves, Climate change, Sea-walls
Abstract: Coastal breakwaters serve a vital role in dissipating wave energy in severe ocean environments and mitigating disastrous impacts of global climate change. As one of the key metrics in evaluating performance of breakwaters, reflection coefficients are usually formulated empirically as a function of either the Iribarren number accounting for wave breaking or the relative water depth measuring wave dispersion. In this work, we conduct a scaled physical model experiment to investigate wave reflection from a horizontally composite breakwater with a steep impermeable slope armored by Accropodes. Tests with specifically designed regular wave conditions produce 400 plus measurements over a grid of Iribarren number and relative water depth to analyze their interplay in jointly determining the reflection coefficients. Empirical formulas in terms of either one or two parameters are proposed through regression analysis for performance evaluation. Error analysis indicates the two-parameter formulas outperform the one-parameter ones with significantly improved predictive skills for the studied breakwater. The two-parameter approach allows complementary influences from the Iribarren number and the relative water depth in fitting the observations and can have broad applications in studies of fluid-structure interactions involving wave reflection, overtopping, transmission, and armor stability, especially when the coastal structures are located outside the shallow-water zone. • A scaled physical model experiment is conducted to investigate wave reflection from a steep impermeable slope of a horizontally composite breakwater armored by Accropodes. • The data measured under well-controlled regular wave conditions reveal the intrinsic nature of wave breaking and wave dispersion in jointly determining the reflection process for the given configuration of the breakwater. • The newly proposed two-parameter reflection coefficient formulas outperform one-parameter ones with significantly improved predictive skills, indicating a broad implication of the two-parameter approach in addressing fluid-structure interactions. [ABSTRACT FROM AUTHOR]
Copyright of Ocean Engineering is the property of Pergamon Press - An Imprint of Elsevier Science 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: 176435709
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  Label: Title
  Group: Ti
  Data: Two-parameter wave reflection coefficient for an impermeable breakwater armored with Accropodes.
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  Data: <searchLink fieldCode="AR" term="%22Bai%2C+Yefei%22">Bai, Yefei</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> yfbai@zju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Fang%2C+Xin%22">Fang, Xin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> fangxin1122@163.com</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Jinwei%22">Liu, Jinwei</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Yifan%22">Zhou, Yifan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Xiaoran%22">Wei, Xiaoran</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhi%2C+Honghuan%22">Zhi, Honghuan</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ocean+Engineering%22">Ocean Engineering</searchLink>. May2024, Vol. 300, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Reflectance%22">Reflectance</searchLink><br /><searchLink fieldCode="DE" term="%22Breakwaters%22">Breakwaters</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid-structure+interaction%22">Fluid-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Water+waves%22">Water waves</searchLink><br /><searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br /><searchLink fieldCode="DE" term="%22Sea-walls%22">Sea-walls</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Coastal breakwaters serve a vital role in dissipating wave energy in severe ocean environments and mitigating disastrous impacts of global climate change. As one of the key metrics in evaluating performance of breakwaters, reflection coefficients are usually formulated empirically as a function of either the Iribarren number accounting for wave breaking or the relative water depth measuring wave dispersion. In this work, we conduct a scaled physical model experiment to investigate wave reflection from a horizontally composite breakwater with a steep impermeable slope armored by Accropodes. Tests with specifically designed regular wave conditions produce 400 plus measurements over a grid of Iribarren number and relative water depth to analyze their interplay in jointly determining the reflection coefficients. Empirical formulas in terms of either one or two parameters are proposed through regression analysis for performance evaluation. Error analysis indicates the two-parameter formulas outperform the one-parameter ones with significantly improved predictive skills for the studied breakwater. The two-parameter approach allows complementary influences from the Iribarren number and the relative water depth in fitting the observations and can have broad applications in studies of fluid-structure interactions involving wave reflection, overtopping, transmission, and armor stability, especially when the coastal structures are located outside the shallow-water zone. • A scaled physical model experiment is conducted to investigate wave reflection from a steep impermeable slope of a horizontally composite breakwater armored by Accropodes. • The data measured under well-controlled regular wave conditions reveal the intrinsic nature of wave breaking and wave dispersion in jointly determining the reflection process for the given configuration of the breakwater. • The newly proposed two-parameter reflection coefficient formulas outperform one-parameter ones with significantly improved predictive skills, indicating a broad implication of the two-parameter approach in addressing fluid-structure interactions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ocean Engineering is the property of Pergamon Press - An Imprint of Elsevier Science 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.oceaneng.2024.117476
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Reflectance
        Type: general
      – SubjectFull: Breakwaters
        Type: general
      – SubjectFull: Fluid-structure interaction
        Type: general
      – SubjectFull: Water waves
        Type: general
      – SubjectFull: Climate change
        Type: general
      – SubjectFull: Sea-walls
        Type: general
    Titles:
      – TitleFull: Two-parameter wave reflection coefficient for an impermeable breakwater armored with Accropodes.
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            NameFull: Bai, Yefei
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            NameFull: Fang, Xin
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            NameFull: Liu, Jinwei
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            NameFull: Zhou, Yifan
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            NameFull: Wei, Xiaoran
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            – D: 15
              M: 05
              Text: May2024
              Type: published
              Y: 2024
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              Value: 300
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            – TitleFull: Ocean Engineering
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