Vortex-induced suspension of sediment in the surf zone
•A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified.•Effect of the vortex-induced flows was incorporated into a suspension model.•The model proposed reasonably predicts the measured sediment concentration due to violen...
Gespeichert in:
| Veröffentlicht in: | Advances in water resources 2017-12, Vol.110, p.59-76 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 76 |
|---|---|
| container_issue | |
| container_start_page | 59 |
| container_title | Advances in water resources |
| container_volume | 110 |
| creator | Otsuka, Junichi Saruwatari, Ayumi Watanabe, Yasunori |
| description | •A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified.•Effect of the vortex-induced flows was incorporated into a suspension model.•The model proposed reasonably predicts the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.
A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified through physical and computational experiments. Counter-rotating flows within obliquely descending eddies produced between adjacent primary roller vortices induce transverse convergent near-bed flows, driving bed load transport to form regular patterns of transverse depositions. The deposited sediment is then rapidly ejected by upward carrier flows induced between the vortices. This mechanism of vortex-induced suspension is supported by experimental evidence that coherent sediment clouds are ejected where the obliquely descending eddies reach the sea bed after the breaking wave front has passed. In addition to the effects of settling and turbulent diffusion caused by breaking waves, the effect of the vortex-induced flows was incorporated into a suspension model on the basis of vorticity dynamics and parametric characteristics of transverse flows in breaking waves. The model proposed here reasonably predicts an exponential attenuation of the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models. |
| doi_str_mv | 10.1016/j.advwatres.2017.08.021 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2021990312</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0309170817302683</els_id><sourcerecordid>2021990312</sourcerecordid><originalsourceid>FETCH-LOGICAL-a415t-ec085211e31f2b67bcc6bb3d00367fa31ede19d41ee5492e9f9eb8cd8fd280663</originalsourceid><addsrcrecordid>eNqFkMtOwzAQRS0EEqXwDURinTB2EttZVhUvqRIbYGsl9li4onaxk_L4elwVsWU1i_sY3UPIJYWKAuXX66o3u49-jJgqBlRUICtg9IjMqBSs7HgrjskMauhKKkCekrOU1gAgG8FmhL-EOOJn6byZNJoiTWmLPrngi2CLhMZt0I-F88X4ilmNtvgOHs_Jie3fEl783jl5vr15Wt6Xq8e7h-ViVfYNbccSNciWUYo1tWzgYtCaD0NtAGoubF9TNEg701DEtukYdrbDQWojrWESOK_n5OrQu43hfcI0qnWYos8vFcsjuw5qyrJLHFw6hpQiWrWNbtPHL0VB7SGptfqDpPaQFEiV8zm5OCQxj9g5jCpphz6TcBH1qExw_3b8AK5odKk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2021990312</pqid></control><display><type>article</type><title>Vortex-induced suspension of sediment in the surf zone</title><source>ScienceDirect Journals (5 years ago - present)</source><creator>Otsuka, Junichi ; Saruwatari, Ayumi ; Watanabe, Yasunori</creator><creatorcontrib>Otsuka, Junichi ; Saruwatari, Ayumi ; Watanabe, Yasunori</creatorcontrib><description>•A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified.•Effect of the vortex-induced flows was incorporated into a suspension model.•The model proposed reasonably predicts the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.
A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified through physical and computational experiments. Counter-rotating flows within obliquely descending eddies produced between adjacent primary roller vortices induce transverse convergent near-bed flows, driving bed load transport to form regular patterns of transverse depositions. The deposited sediment is then rapidly ejected by upward carrier flows induced between the vortices. This mechanism of vortex-induced suspension is supported by experimental evidence that coherent sediment clouds are ejected where the obliquely descending eddies reach the sea bed after the breaking wave front has passed. In addition to the effects of settling and turbulent diffusion caused by breaking waves, the effect of the vortex-induced flows was incorporated into a suspension model on the basis of vorticity dynamics and parametric characteristics of transverse flows in breaking waves. The model proposed here reasonably predicts an exponential attenuation of the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.</description><identifier>ISSN: 0309-1708</identifier><identifier>EISSN: 1872-9657</identifier><identifier>DOI: 10.1016/j.advwatres.2017.08.021</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Bed load ; Breaking waves ; Computational fluid dynamics ; Computer applications ; Counter-rotating vortices ; Diffusion ; Dye dispersion ; Dynamics ; Eddies ; Eddy diffusion ; Ejection ; Sediment ; Sediment concentration ; Sediment load ; Sediment suspension ; Sediment transport ; Sediments ; Studies ; Surf ; Surf zone ; Turbulence ; Turbulent diffusion ; Vortices ; Vorticity ; Wave attenuation ; Waves</subject><ispartof>Advances in water resources, 2017-12, Vol.110, p.59-76</ispartof><rights>2017 The Authors</rights><rights>Copyright Elsevier Science Ltd. Dec 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a415t-ec085211e31f2b67bcc6bb3d00367fa31ede19d41ee5492e9f9eb8cd8fd280663</citedby><cites>FETCH-LOGICAL-a415t-ec085211e31f2b67bcc6bb3d00367fa31ede19d41ee5492e9f9eb8cd8fd280663</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.advwatres.2017.08.021$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Otsuka, Junichi</creatorcontrib><creatorcontrib>Saruwatari, Ayumi</creatorcontrib><creatorcontrib>Watanabe, Yasunori</creatorcontrib><title>Vortex-induced suspension of sediment in the surf zone</title><title>Advances in water resources</title><description>•A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified.•Effect of the vortex-induced flows was incorporated into a suspension model.•The model proposed reasonably predicts the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.
A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified through physical and computational experiments. Counter-rotating flows within obliquely descending eddies produced between adjacent primary roller vortices induce transverse convergent near-bed flows, driving bed load transport to form regular patterns of transverse depositions. The deposited sediment is then rapidly ejected by upward carrier flows induced between the vortices. This mechanism of vortex-induced suspension is supported by experimental evidence that coherent sediment clouds are ejected where the obliquely descending eddies reach the sea bed after the breaking wave front has passed. In addition to the effects of settling and turbulent diffusion caused by breaking waves, the effect of the vortex-induced flows was incorporated into a suspension model on the basis of vorticity dynamics and parametric characteristics of transverse flows in breaking waves. The model proposed here reasonably predicts an exponential attenuation of the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.</description><subject>Bed load</subject><subject>Breaking waves</subject><subject>Computational fluid dynamics</subject><subject>Computer applications</subject><subject>Counter-rotating vortices</subject><subject>Diffusion</subject><subject>Dye dispersion</subject><subject>Dynamics</subject><subject>Eddies</subject><subject>Eddy diffusion</subject><subject>Ejection</subject><subject>Sediment</subject><subject>Sediment concentration</subject><subject>Sediment load</subject><subject>Sediment suspension</subject><subject>Sediment transport</subject><subject>Sediments</subject><subject>Studies</subject><subject>Surf</subject><subject>Surf zone</subject><subject>Turbulence</subject><subject>Turbulent diffusion</subject><subject>Vortices</subject><subject>Vorticity</subject><subject>Wave attenuation</subject><subject>Waves</subject><issn>0309-1708</issn><issn>1872-9657</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqXwDURinTB2EttZVhUvqRIbYGsl9li4onaxk_L4elwVsWU1i_sY3UPIJYWKAuXX66o3u49-jJgqBlRUICtg9IjMqBSs7HgrjskMauhKKkCekrOU1gAgG8FmhL-EOOJn6byZNJoiTWmLPrngi2CLhMZt0I-F88X4ilmNtvgOHs_Jie3fEl783jl5vr15Wt6Xq8e7h-ViVfYNbccSNciWUYo1tWzgYtCaD0NtAGoubF9TNEg701DEtukYdrbDQWojrWESOK_n5OrQu43hfcI0qnWYos8vFcsjuw5qyrJLHFw6hpQiWrWNbtPHL0VB7SGptfqDpPaQFEiV8zm5OCQxj9g5jCpphz6TcBH1qExw_3b8AK5odKk</recordid><startdate>201712</startdate><enddate>201712</enddate><creator>Otsuka, Junichi</creator><creator>Saruwatari, Ayumi</creator><creator>Watanabe, Yasunori</creator><general>Elsevier Ltd</general><general>Elsevier Science Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QH</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SE</scope><scope>7SR</scope><scope>7ST</scope><scope>7T7</scope><scope>7TA</scope><scope>7TG</scope><scope>7UA</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>F28</scope><scope>FR3</scope><scope>H8G</scope><scope>H97</scope><scope>JG9</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>201712</creationdate><title>Vortex-induced suspension of sediment in the surf zone</title><author>Otsuka, Junichi ; Saruwatari, Ayumi ; Watanabe, Yasunori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a415t-ec085211e31f2b67bcc6bb3d00367fa31ede19d41ee5492e9f9eb8cd8fd280663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Bed load</topic><topic>Breaking waves</topic><topic>Computational fluid dynamics</topic><topic>Computer applications</topic><topic>Counter-rotating vortices</topic><topic>Diffusion</topic><topic>Dye dispersion</topic><topic>Dynamics</topic><topic>Eddies</topic><topic>Eddy diffusion</topic><topic>Ejection</topic><topic>Sediment</topic><topic>Sediment concentration</topic><topic>Sediment load</topic><topic>Sediment suspension</topic><topic>Sediment transport</topic><topic>Sediments</topic><topic>Studies</topic><topic>Surf</topic><topic>Surf zone</topic><topic>Turbulence</topic><topic>Turbulent diffusion</topic><topic>Vortices</topic><topic>Vorticity</topic><topic>Wave attenuation</topic><topic>Waves</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Otsuka, Junichi</creatorcontrib><creatorcontrib>Saruwatari, Ayumi</creatorcontrib><creatorcontrib>Watanabe, Yasunori</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Materials Research Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Advances in water resources</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Otsuka, Junichi</au><au>Saruwatari, Ayumi</au><au>Watanabe, Yasunori</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vortex-induced suspension of sediment in the surf zone</atitle><jtitle>Advances in water resources</jtitle><date>2017-12</date><risdate>2017</risdate><volume>110</volume><spage>59</spage><epage>76</epage><pages>59-76</pages><issn>0309-1708</issn><eissn>1872-9657</eissn><abstract>•A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified.•Effect of the vortex-induced flows was incorporated into a suspension model.•The model proposed reasonably predicts the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.
A major mechanism of sediment suspension by organized vortices produced under violent breaking waves in the surf zone was identified through physical and computational experiments. Counter-rotating flows within obliquely descending eddies produced between adjacent primary roller vortices induce transverse convergent near-bed flows, driving bed load transport to form regular patterns of transverse depositions. The deposited sediment is then rapidly ejected by upward carrier flows induced between the vortices. This mechanism of vortex-induced suspension is supported by experimental evidence that coherent sediment clouds are ejected where the obliquely descending eddies reach the sea bed after the breaking wave front has passed. In addition to the effects of settling and turbulent diffusion caused by breaking waves, the effect of the vortex-induced flows was incorporated into a suspension model on the basis of vorticity dynamics and parametric characteristics of transverse flows in breaking waves. The model proposed here reasonably predicts an exponential attenuation of the measured sediment concentration due to violent plunging waves and significantly improves the underprediction of the concentration produced by previous models.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.advwatres.2017.08.021</doi><tpages>18</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0309-1708 |
| ispartof | Advances in water resources, 2017-12, Vol.110, p.59-76 |
| issn | 0309-1708 1872-9657 |
| language | eng |
| recordid | cdi_proquest_journals_2021990312 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Bed load Breaking waves Computational fluid dynamics Computer applications Counter-rotating vortices Diffusion Dye dispersion Dynamics Eddies Eddy diffusion Ejection Sediment Sediment concentration Sediment load Sediment suspension Sediment transport Sediments Studies Surf Surf zone Turbulence Turbulent diffusion Vortices Vorticity Wave attenuation Waves |
| title | Vortex-induced suspension of sediment in the surf zone |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T19%3A16%3A21IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Vortex-induced%20suspension%20of%20sediment%20in%20the%20surf%20zone&rft.jtitle=Advances%20in%20water%20resources&rft.au=Otsuka,%20Junichi&rft.date=2017-12&rft.volume=110&rft.spage=59&rft.epage=76&rft.pages=59-76&rft.issn=0309-1708&rft.eissn=1872-9657&rft_id=info:doi/10.1016/j.advwatres.2017.08.021&rft_dat=%3Cproquest_cross%3E2021990312%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2021990312&rft_id=info:pmid/&rft_els_id=S0309170817302683&rfr_iscdi=true |