File Download
 
Links for fulltext
(May Require Subscription)
 
Supplementary

Article: Nonlinear mechanism of bed load transport
  • Basic View
  • Metadata View
  • XML View
TitleNonlinear mechanism of bed load transport
 
AuthorsXu, H2
Bai, Y2
Ng, CO1
 
KeywordsDynamic mechanical analysis
Open channel flow
Sediment transport
 
Issue Date2009
 
PublisherTianjin University. The Journal's web site is located at http://tjdy.chinajournal.net.cn/
 
CitationTransactions Of Tianjin University, 2009, v. 15 n. 2, p. 126-129 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12209-009-0022-5
 
AbstractFrom the group movement of the bed load within the bottom layer, details of the nonlinear dynamic characteristics of bed load movement are discussed in this paper. Whether the sediment is initiated into motion corresponds to whether the constant term in the equation is equal to zero. If constant term is zero and no dispersive force is considered, the equation represents the traditional Shields initiation curve, and if constant term is zero without the dispersive force being considered, then a new Shields curve which is much lower than the traditional one is got. The fixed point of the equation corresponds to the equilibrium sediment transport of bed load. In the mutation analysis, we have found that the inflection point is the demarcation point of breaking. In theory, the breaking point corresponds to the dividing boundary line, across which the bed form changes from flat bed to sand ripple or sand dune. Compared with the experimental data of Chatou Hydraulic Lab in France, the conclusions are verified. © Tianjin University and Springer-Verlag 2009.
 
ISSN1006-4982
2013 SCImago Journal Rankings: 0.260
 
DOIhttp://dx.doi.org/10.1007/s12209-009-0022-5
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorXu, H
 
dc.contributor.authorBai, Y
 
dc.contributor.authorNg, CO
 
dc.date.accessioned2010-05-31T03:41:18Z
 
dc.date.available2010-05-31T03:41:18Z
 
dc.date.issued2009
 
dc.description.abstractFrom the group movement of the bed load within the bottom layer, details of the nonlinear dynamic characteristics of bed load movement are discussed in this paper. Whether the sediment is initiated into motion corresponds to whether the constant term in the equation is equal to zero. If constant term is zero and no dispersive force is considered, the equation represents the traditional Shields initiation curve, and if constant term is zero without the dispersive force being considered, then a new Shields curve which is much lower than the traditional one is got. The fixed point of the equation corresponds to the equilibrium sediment transport of bed load. In the mutation analysis, we have found that the inflection point is the demarcation point of breaking. In theory, the breaking point corresponds to the dividing boundary line, across which the bed form changes from flat bed to sand ripple or sand dune. Compared with the experimental data of Chatou Hydraulic Lab in France, the conclusions are verified. © Tianjin University and Springer-Verlag 2009.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationTransactions Of Tianjin University, 2009, v. 15 n. 2, p. 126-129 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12209-009-0022-5
 
dc.identifier.citeulike4540714
 
dc.identifier.doihttp://dx.doi.org/10.1007/s12209-009-0022-5
 
dc.identifier.epage129
 
dc.identifier.hkuros158241
 
dc.identifier.issn1006-4982
2013 SCImago Journal Rankings: 0.260
 
dc.identifier.issue2
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-65749116614
 
dc.identifier.spage126
 
dc.identifier.urihttp://hdl.handle.net/10722/59007
 
dc.identifier.volume15
 
dc.languageeng
 
dc.publisherTianjin University. The Journal's web site is located at http://tjdy.chinajournal.net.cn/
 
dc.publisher.placeChina
 
dc.relation.ispartofTransactions of Tianjin University
 
dc.relation.referencesReferences in Scopus
 
dc.subjectDynamic mechanical analysis
 
dc.subjectOpen channel flow
 
dc.subjectSediment transport
 
dc.titleNonlinear mechanism of bed load transport
 
dc.typeArticle
 
<?xml encoding="utf-8" version="1.0"?>
<item><contributor.author>Xu, H</contributor.author>
<contributor.author>Bai, Y</contributor.author>
<contributor.author>Ng, CO</contributor.author>
<date.accessioned>2010-05-31T03:41:18Z</date.accessioned>
<date.available>2010-05-31T03:41:18Z</date.available>
<date.issued>2009</date.issued>
<identifier.citation>Transactions Of Tianjin University, 2009, v. 15 n. 2, p. 126-129</identifier.citation>
<identifier.issn>1006-4982</identifier.issn>
<identifier.uri>http://hdl.handle.net/10722/59007</identifier.uri>
<description.abstract>From the group movement of the bed load within the bottom layer, details of the nonlinear dynamic characteristics of bed load movement are discussed in this paper. Whether the sediment is initiated into motion corresponds to whether the constant term in the equation is equal to zero. If constant term is zero and no dispersive force is considered, the equation represents the traditional Shields initiation curve, and if constant term is zero without the dispersive force being considered, then a new Shields curve which is much lower than the traditional one is got. The fixed point of the equation corresponds to the equilibrium sediment transport of bed load. In the mutation analysis, we have found that the inflection point is the demarcation point of breaking. In theory, the breaking point corresponds to the dividing boundary line, across which the bed form changes from flat bed to sand ripple or sand dune. Compared with the experimental data of Chatou Hydraulic Lab in France, the conclusions are verified. &#169; Tianjin University and Springer-Verlag 2009.</description.abstract>
<language>eng</language>
<publisher>Tianjin University. The Journal&apos;s web site is located at http://tjdy.chinajournal.net.cn/</publisher>
<relation.ispartof>Transactions of Tianjin University</relation.ispartof>
<subject>Dynamic mechanical analysis</subject>
<subject>Open channel flow</subject>
<subject>Sediment transport</subject>
<title>Nonlinear mechanism of bed load transport</title>
<type>Article</type>
<identifier.openurl>http://library.hku.hk:4550/resserv?sid=HKU:IR&amp;issn=1006-4982&amp;volume=15&amp;issue=2&amp;spage=126&#8211;129&amp;epage=&amp;date=2009&amp;atitle=Nonlinear+mechanism+of+bed+load+transport</identifier.openurl>
<description.nature>link_to_subscribed_fulltext</description.nature>
<identifier.doi>10.1007/s12209-009-0022-5</identifier.doi>
<identifier.scopus>eid_2-s2.0-65749116614</identifier.scopus>
<identifier.hkuros>158241</identifier.hkuros>
<relation.references>http://www.scopus.com/mlt/select.url?eid=2-s2.0-65749116614&amp;selection=ref&amp;src=s&amp;origin=recordpage</relation.references>
<identifier.volume>15</identifier.volume>
<identifier.issue>2</identifier.issue>
<identifier.spage>126</identifier.spage>
<identifier.epage>129</identifier.epage>
<publisher.place>China</publisher.place>
<identifier.citeulike>4540714</identifier.citeulike>
</item>
Author Affiliations
  1. The University of Hong Kong
  2. Tianjin University