Inertia effects in bed-load transport models
Inertia effects are seldom considered in morphological modeling, and most of the transport models were developed from laboratory experiments in steady uniform flow conditions. This paper considers first the hysteresis effects in transient flows between discharge, velocity, and bottom shear stress. T...
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| Veröffentlicht in: | Canadian journal of civil engineering 2009-10, Vol.36 (10), p.1587-1597 |
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| container_issue | 10 |
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| container_title | Canadian journal of civil engineering |
| container_volume | 36 |
| creator | ZECH, Y SOARES-FRAZAO, S SPINEWINE, B SAVARY, C GOUTIERE, L REDACTION, La |
| description | Inertia effects are seldom considered in morphological modeling, and most of the transport models were developed from laboratory experiments in steady uniform flow conditions. This paper considers first the hysteresis effects in transient flows between discharge, velocity, and bottom shear stress. These effects can be taken into account as far as the complete shallow-water equations are used. Secondly, inertia effects linked to the sediment response to acting forces are considered. Three types of models are investigated: (i) sediment movement instantaneously adapting to hydrodynamic changes, (ii) spatial or temporal lag laws to give space or time to the sediments to progressively reach the transport capacity, and (iii) a two-layer model, able to account for the inertia of the sediment layer. Finally, three examples are presented: a scour hole downstream of an apron, a jump over a mobile bed, and a dam-break wave. Inertia effects appear significant in the modeling, especially the latter case. |
| doi_str_mv | 10.1139/L09-052 |
| format | Article |
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This paper considers first the hysteresis effects in transient flows between discharge, velocity, and bottom shear stress. These effects can be taken into account as far as the complete shallow-water equations are used. Secondly, inertia effects linked to the sediment response to acting forces are considered. Three types of models are investigated: (i) sediment movement instantaneously adapting to hydrodynamic changes, (ii) spatial or temporal lag laws to give space or time to the sediments to progressively reach the transport capacity, and (iii) a two-layer model, able to account for the inertia of the sediment layer. Finally, three examples are presented: a scour hole downstream of an apron, a jump over a mobile bed, and a dam-break wave. Inertia effects appear significant in the modeling, especially the latter case.</description><identifier>ISSN: 0315-1468</identifier><identifier>EISSN: 1208-6029</identifier><identifier>DOI: 10.1139/L09-052</identifier><identifier>CODEN: CJCEB8</identifier><language>eng</language><publisher>Ottawa, ON: National Research Council of Canada</publisher><subject>Applied sciences ; Bed load ; Buildings. Public works ; Civil engineering ; Computation methods. Tables. Charts ; Dam failure ; Exact sciences and technology ; Experiments ; Hydraulic constructions ; Inertia ; Inertia (Mechanics) ; Measurement ; Observations ; River flow control. Flood control ; Sediment transport ; Sediments ; Shallow water ; Shear stress ; Structural analysis. Stresses ; Transients (Dynamics) ; Uniform flow</subject><ispartof>Canadian journal of civil engineering, 2009-10, Vol.36 (10), p.1587-1597</ispartof><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2009 NRC Research Press</rights><rights>Copyright National Research Council of Canada Oct 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22259911$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>ZECH, Y</creatorcontrib><creatorcontrib>SOARES-FRAZAO, S</creatorcontrib><creatorcontrib>SPINEWINE, B</creatorcontrib><creatorcontrib>SAVARY, C</creatorcontrib><creatorcontrib>GOUTIERE, L</creatorcontrib><creatorcontrib>REDACTION, La</creatorcontrib><title>Inertia effects in bed-load transport models</title><title>Canadian journal of civil engineering</title><description>Inertia effects are seldom considered in morphological modeling, and most of the transport models were developed from laboratory experiments in steady uniform flow conditions. This paper considers first the hysteresis effects in transient flows between discharge, velocity, and bottom shear stress. These effects can be taken into account as far as the complete shallow-water equations are used. Secondly, inertia effects linked to the sediment response to acting forces are considered. Three types of models are investigated: (i) sediment movement instantaneously adapting to hydrodynamic changes, (ii) spatial or temporal lag laws to give space or time to the sediments to progressively reach the transport capacity, and (iii) a two-layer model, able to account for the inertia of the sediment layer. Finally, three examples are presented: a scour hole downstream of an apron, a jump over a mobile bed, and a dam-break wave. Inertia effects appear significant in the modeling, especially the latter case.</description><subject>Applied sciences</subject><subject>Bed load</subject><subject>Buildings. Public works</subject><subject>Civil engineering</subject><subject>Computation methods. Tables. Charts</subject><subject>Dam failure</subject><subject>Exact sciences and technology</subject><subject>Experiments</subject><subject>Hydraulic constructions</subject><subject>Inertia</subject><subject>Inertia (Mechanics)</subject><subject>Measurement</subject><subject>Observations</subject><subject>River flow control. Flood control</subject><subject>Sediment transport</subject><subject>Sediments</subject><subject>Shallow water</subject><subject>Shear stress</subject><subject>Structural analysis. Stresses</subject><subject>Transients (Dynamics)</subject><subject>Uniform flow</subject><issn>0315-1468</issn><issn>1208-6029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNqV0ltLwzAUB_AgCs4LfoUiKAhWc2m65FHEy2AoeHkuWXI6I107e1LQb--BiTjxRQIJhN_5k5OEsQPBz4RQ9nzKbc613GAjIbnJSy7tJhtxJXQuitJssx3EV84FV8qO2OmkhT5Fl0Fdg0-YxTabQcibzoUs9a7FZdenbNEFaHCPbdWuQdj_WnfZ8_XV0-VtPr2_mVxeTHOneZnyUhtwTlupaivFeKyt8mUZQumtVoXmwI0xoQ5GluOZ40IVkhe6kEYKZ4MKapcdr3KXffc2AKZqEdFD07gWugErKSiBeiF4-Au-dkPf0tnIqIIXhZGE8hWauwaq2NYd9eXnQI27pmuhjrR9QV5RCZ31O3TN-2V8q36isz8QjQCL6P9MPVkrIJPgPc3dgFhNHh_-Ye_W7ekPOxswtoA0YZy_JFyVrPGjrxtz6F1T0wv7iNWyjwvXf1RSSm0t_aNP4HOvUg</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>ZECH, Y</creator><creator>SOARES-FRAZAO, S</creator><creator>SPINEWINE, B</creator><creator>SAVARY, C</creator><creator>GOUTIERE, L</creator><creator>REDACTION, La</creator><general>National Research Council of Canada</general><general>NRC Research Press</general><general>Canadian Science Publishing NRC Research Press</general><scope>IQODW</scope><scope>N95</scope><scope>ISN</scope><scope>ISR</scope><scope>7ST</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20091001</creationdate><title>Inertia effects in bed-load transport models</title><author>ZECH, Y ; SOARES-FRAZAO, S ; SPINEWINE, B ; SAVARY, C ; GOUTIERE, L ; REDACTION, La</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a506t-658eaa5923f92177593c66dd6c953450e0888dfd8267ba0134204542821a9d3d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Bed load</topic><topic>Buildings. Public works</topic><topic>Civil engineering</topic><topic>Computation methods. Tables. Charts</topic><topic>Dam failure</topic><topic>Exact sciences and technology</topic><topic>Experiments</topic><topic>Hydraulic constructions</topic><topic>Inertia</topic><topic>Inertia (Mechanics)</topic><topic>Measurement</topic><topic>Observations</topic><topic>River flow control. Flood control</topic><topic>Sediment transport</topic><topic>Sediments</topic><topic>Shallow water</topic><topic>Shear stress</topic><topic>Structural analysis. Stresses</topic><topic>Transients (Dynamics)</topic><topic>Uniform flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ZECH, Y</creatorcontrib><creatorcontrib>SOARES-FRAZAO, S</creatorcontrib><creatorcontrib>SPINEWINE, B</creatorcontrib><creatorcontrib>SAVARY, C</creatorcontrib><creatorcontrib>GOUTIERE, L</creatorcontrib><creatorcontrib>REDACTION, La</creatorcontrib><collection>Pascal-Francis</collection><collection>Gale Business: Insights</collection><collection>Gale In Context: Canada</collection><collection>Gale In Context: Science</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Canadian journal of civil engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ZECH, Y</au><au>SOARES-FRAZAO, S</au><au>SPINEWINE, B</au><au>SAVARY, C</au><au>GOUTIERE, L</au><au>REDACTION, La</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inertia effects in bed-load transport models</atitle><jtitle>Canadian journal of civil engineering</jtitle><date>2009-10-01</date><risdate>2009</risdate><volume>36</volume><issue>10</issue><spage>1587</spage><epage>1597</epage><pages>1587-1597</pages><issn>0315-1468</issn><eissn>1208-6029</eissn><coden>CJCEB8</coden><abstract>Inertia effects are seldom considered in morphological modeling, and most of the transport models were developed from laboratory experiments in steady uniform flow conditions. This paper considers first the hysteresis effects in transient flows between discharge, velocity, and bottom shear stress. These effects can be taken into account as far as the complete shallow-water equations are used. Secondly, inertia effects linked to the sediment response to acting forces are considered. Three types of models are investigated: (i) sediment movement instantaneously adapting to hydrodynamic changes, (ii) spatial or temporal lag laws to give space or time to the sediments to progressively reach the transport capacity, and (iii) a two-layer model, able to account for the inertia of the sediment layer. Finally, three examples are presented: a scour hole downstream of an apron, a jump over a mobile bed, and a dam-break wave. Inertia effects appear significant in the modeling, especially the latter case.</abstract><cop>Ottawa, ON</cop><pub>National Research Council of Canada</pub><doi>10.1139/L09-052</doi><tpages>11</tpages></addata></record> |
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| ispartof | Canadian journal of civil engineering, 2009-10, Vol.36 (10), p.1587-1597 |
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| subjects | Applied sciences Bed load Buildings. Public works Civil engineering Computation methods. Tables. Charts Dam failure Exact sciences and technology Experiments Hydraulic constructions Inertia Inertia (Mechanics) Measurement Observations River flow control. Flood control Sediment transport Sediments Shallow water Shear stress Structural analysis. Stresses Transients (Dynamics) Uniform flow |
| title | Inertia effects in bed-load transport models |
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