On the wave damping due to a permeable seabed
Laboratory experiments were performed to study the wave damping induced by a porous bed. During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wa...
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| Veröffentlicht in: | Coastal engineering (Amsterdam) 2010-11, Vol.57 (11), p.1029-1041 |
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| container_title | Coastal engineering (Amsterdam) |
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| creator | Corvaro, S. Mancinelli, A. Brocchini, M. Seta, E. Lorenzoni, C. |
| description | Laboratory experiments were performed to study the wave damping induced by a porous bed. During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wave decay is found to depend on the wave characteristics like the wave height, the wavelength and the wave shape. We have also studied the influence of the geometric properties of the porous bed (i.e. thickness and length) on the wave dissipation. It is found that the attenuation of the wave height increases with the permeable bed thickness and that there is a maximum wave dissipation for a length of the porous seabed equal to 2.0–2.5 times the wavelength. A comparison is also made of our findings with available literature results. A parametric study of the wave damping has been performed by varying the values of the resistance coefficients derived by both literature and experiments. Literature analytical models have been applied by using the resistance coefficients that better describe our flow conditions. All models in use underpredict the observed wave attenuation for any sensible values of the resistance coefficients. |
| doi_str_mv | 10.1016/j.coastaleng.2010.06.005 |
| format | Article |
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During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wave decay is found to depend on the wave characteristics like the wave height, the wavelength and the wave shape. We have also studied the influence of the geometric properties of the porous bed (i.e. thickness and length) on the wave dissipation. It is found that the attenuation of the wave height increases with the permeable bed thickness and that there is a maximum wave dissipation for a length of the porous seabed equal to 2.0–2.5 times the wavelength. A comparison is also made of our findings with available literature results. A parametric study of the wave damping has been performed by varying the values of the resistance coefficients derived by both literature and experiments. 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Geothermics ; Engineering geology ; Exact sciences and technology ; Geomorphology, landform evolution ; Marine ; Marine and continental quaternary ; Mathematical analysis ; Mathematical models ; Permeable seabed ; Porous medium ; Resistance coefficients ; Sea beds ; Surficial geology ; Wave damping ; Wave propagation ; Wavelengths</subject><ispartof>Coastal engineering (Amsterdam), 2010-11, Vol.57 (11), p.1029-1041</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-652c6a1098fdb29f8a4210e372fd4e616dbe26b5059cfce616c8a76a115a70be3</citedby><cites>FETCH-LOGICAL-c380t-652c6a1098fdb29f8a4210e372fd4e616dbe26b5059cfce616c8a76a115a70be3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0378383910000992$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23265682$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Corvaro, S.</creatorcontrib><creatorcontrib>Mancinelli, A.</creatorcontrib><creatorcontrib>Brocchini, M.</creatorcontrib><creatorcontrib>Seta, E.</creatorcontrib><creatorcontrib>Lorenzoni, C.</creatorcontrib><title>On the wave damping due to a permeable seabed</title><title>Coastal engineering (Amsterdam)</title><description>Laboratory experiments were performed to study the wave damping induced by a porous bed. During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wave decay is found to depend on the wave characteristics like the wave height, the wavelength and the wave shape. We have also studied the influence of the geometric properties of the porous bed (i.e. thickness and length) on the wave dissipation. It is found that the attenuation of the wave height increases with the permeable bed thickness and that there is a maximum wave dissipation for a length of the porous seabed equal to 2.0–2.5 times the wavelength. A comparison is also made of our findings with available literature results. A parametric study of the wave damping has been performed by varying the values of the resistance coefficients derived by both literature and experiments. Literature analytical models have been applied by using the resistance coefficients that better describe our flow conditions. All models in use underpredict the observed wave attenuation for any sensible values of the resistance coefficients.</description><subject>Attenuation</subject><subject>Damping</subject><subject>Decay</subject><subject>Dissipation</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Engineering geology</subject><subject>Exact sciences and technology</subject><subject>Geomorphology, landform evolution</subject><subject>Marine</subject><subject>Marine and continental quaternary</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Permeable seabed</subject><subject>Porous medium</subject><subject>Resistance coefficients</subject><subject>Sea beds</subject><subject>Surficial geology</subject><subject>Wave damping</subject><subject>Wave propagation</subject><subject>Wavelengths</subject><issn>0378-3839</issn><issn>1872-7379</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKv_IRtxNWMezWOWWnxBoRtdh0xyp6bMy2Ra8d-bUtGld3PgcM693A8hTElJCZW329INNk22hX5TMpJtIktCxAmaUa1YobiqTtGMcKULrnl1ji5S2pI8UosZKtY9nt4Bf9o9YG-7MfQb7HeApwFbPELswNYt4JQF_CU6a2yb4OpH5-jt8eF1-Vys1k8vy7tV4bgmUyEFc9JSUunG16xqtF0wSoAr1vgFSCp9DUzWgojKNe5gOG1VblBhFamBz9HNce8Yh48dpMl0ITloW9vDsEtGiYpTIRY6J_Ux6eKQUoTGjDF0Nn4ZSswBkNmaP0DmAMgQaTKgXL3-OWKTs20Tbe9C-u0zzqSQmuXc_TEH-eN9gGiSC9A78CGCm4wfwv_HvgGmvH9f</recordid><startdate>20101101</startdate><enddate>20101101</enddate><creator>Corvaro, S.</creator><creator>Mancinelli, A.</creator><creator>Brocchini, M.</creator><creator>Seta, E.</creator><creator>Lorenzoni, C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20101101</creationdate><title>On the wave damping due to a permeable seabed</title><author>Corvaro, S. ; Mancinelli, A. ; Brocchini, M. ; Seta, E. ; Lorenzoni, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-652c6a1098fdb29f8a4210e372fd4e616dbe26b5059cfce616c8a76a115a70be3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Attenuation</topic><topic>Damping</topic><topic>Decay</topic><topic>Dissipation</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Engineering and environment geology. Geothermics</topic><topic>Engineering geology</topic><topic>Exact sciences and technology</topic><topic>Geomorphology, landform evolution</topic><topic>Marine</topic><topic>Marine and continental quaternary</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Permeable seabed</topic><topic>Porous medium</topic><topic>Resistance coefficients</topic><topic>Sea beds</topic><topic>Surficial geology</topic><topic>Wave damping</topic><topic>Wave propagation</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Corvaro, S.</creatorcontrib><creatorcontrib>Mancinelli, A.</creatorcontrib><creatorcontrib>Brocchini, M.</creatorcontrib><creatorcontrib>Seta, E.</creatorcontrib><creatorcontrib>Lorenzoni, C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Coastal engineering (Amsterdam)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Corvaro, S.</au><au>Mancinelli, A.</au><au>Brocchini, M.</au><au>Seta, E.</au><au>Lorenzoni, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the wave damping due to a permeable seabed</atitle><jtitle>Coastal engineering (Amsterdam)</jtitle><date>2010-11-01</date><risdate>2010</risdate><volume>57</volume><issue>11</issue><spage>1029</spage><epage>1041</epage><pages>1029-1041</pages><issn>0378-3839</issn><eissn>1872-7379</eissn><coden>COENDE</coden><abstract>Laboratory experiments were performed to study the wave damping induced by a porous bed. During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wave decay is found to depend on the wave characteristics like the wave height, the wavelength and the wave shape. We have also studied the influence of the geometric properties of the porous bed (i.e. thickness and length) on the wave dissipation. It is found that the attenuation of the wave height increases with the permeable bed thickness and that there is a maximum wave dissipation for a length of the porous seabed equal to 2.0–2.5 times the wavelength. A comparison is also made of our findings with available literature results. A parametric study of the wave damping has been performed by varying the values of the resistance coefficients derived by both literature and experiments. 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| identifier | ISSN: 0378-3839 |
| ispartof | Coastal engineering (Amsterdam), 2010-11, Vol.57 (11), p.1029-1041 |
| issn | 0378-3839 1872-7379 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Attenuation Damping Decay Dissipation Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Engineering geology Exact sciences and technology Geomorphology, landform evolution Marine Marine and continental quaternary Mathematical analysis Mathematical models Permeable seabed Porous medium Resistance coefficients Sea beds Surficial geology Wave damping Wave propagation Wavelengths |
| title | On the wave damping due to a permeable seabed |
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