Low-dimensional boundary-layer model of turbulent dispersion in a channel

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dc.contributor.authorStrunin, D.
dc.contributor.authorRoberts, A.
dc.contributor.conferenceWorld Congress on Engineering (2009 : London, UK)
dc.contributor.editorAo, S.I.
dc.contributor.editorGelman, L.
dc.contributor.editorHukins, D.W.L.
dc.contributor.editorHunter, A.
dc.contributor.editorKorsunsky, A.M.
dc.date.issued2009
dc.description.abstractWe analyse dispersion of contaminants in turbulent boundary layer using centre manifold technique. The method describes long-term asymp- totics of the contaminant concentration as it becomes spread across the entire layer and is weakly distorted by the velocity shear. The dispersion is investigated in two cases: (a) logarithmic and (b) power veloc- ity profile across the layer according to a traditional and a more recent theory respectively. We deduce an advection-diffusion equation for the depth-average concentration in each case. The equation represents a leading approximation of the dynamics and can be ex- tended to include higher-order derivatives for better precision.
dc.description.statementofresponsibilityD.V. Struin, A. J. Roberts
dc.identifier.citationWorld Congress on Engineering: WCE 2009 : Vol II, 2009, pp.1-5
dc.identifier.isbn9789881821010
dc.identifier.issn2078-0958
dc.identifier.issn2078-0966
dc.identifier.orcidRoberts, A. [0000-0001-8930-1552]
dc.identifier.urihttp://hdl.handle.net/2440/68688
dc.language.isoen
dc.publisherNewswood and International Association of Engineers
dc.publisher.placeHong Kong
dc.relation.ispartofseriesLecture Notes in Engineering and Computer Science; 2177(1)
dc.rights© Copyright International Association of Engineers. Provided through DOAJ whose site and its metadata are licensed under CC BY-SA
dc.source.urihttps://doaj.org/article/1585602ac5fc4d0b9749fd51aa7b0f20
dc.subjectDispersion; channel; turbulent boundary layer
dc.titleLow-dimensional boundary-layer model of turbulent dispersion in a channel
dc.typeConference paper
pubs.publication-statusPublished

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