File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Mass transport in a layer of power-law fluid forced by periodic surface pressure

TitleMass transport in a layer of power-law fluid forced by periodic surface pressure
Authors
Issue Date2004
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/wamot
Citation
Wave Motion, 2004, v. 39 n. 3, p. 241-259 How to Cite?
AbstractAn asymptotic theory is presented for the mass transport in a thin layer of non-Newtonian fluid which is forced by periodic pressure on the free surface. The fluid is supposed to be pseudoplastic or shear thinning, and a power-law model is adopted to describe the stress and shear rate relationship. Based on the assumptions of shallowness and small deformations, a perturbation analysis is carried out to the second order to yield equations of motion in terms of the Lagrangian variables. These equations are non-linear because of the power law for the shear rate. Therefore, unlike the Newtonian case, the mass transport velocity cannot be found simply by first time-averaging the second-order differential equation, which instead must be solved in full before the steady component is separated from the complete solution. Numerical results, which are generated with finite differences, are examined in particular for the dependence of the fluid motion (first-order particle displacements and second-order mass transport velocity) on the pressure forcing as a function of the flow index. © 2003 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/75914
ISSN
2015 Impact Factor: 1.449
2015 SCImago Journal Rankings: 0.668
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, COen_HK
dc.date.accessioned2010-09-06T07:15:48Z-
dc.date.available2010-09-06T07:15:48Z-
dc.date.issued2004en_HK
dc.identifier.citationWave Motion, 2004, v. 39 n. 3, p. 241-259en_HK
dc.identifier.issn0165-2125en_HK
dc.identifier.urihttp://hdl.handle.net/10722/75914-
dc.description.abstractAn asymptotic theory is presented for the mass transport in a thin layer of non-Newtonian fluid which is forced by periodic pressure on the free surface. The fluid is supposed to be pseudoplastic or shear thinning, and a power-law model is adopted to describe the stress and shear rate relationship. Based on the assumptions of shallowness and small deformations, a perturbation analysis is carried out to the second order to yield equations of motion in terms of the Lagrangian variables. These equations are non-linear because of the power law for the shear rate. Therefore, unlike the Newtonian case, the mass transport velocity cannot be found simply by first time-averaging the second-order differential equation, which instead must be solved in full before the steady component is separated from the complete solution. Numerical results, which are generated with finite differences, are examined in particular for the dependence of the fluid motion (first-order particle displacements and second-order mass transport velocity) on the pressure forcing as a function of the flow index. © 2003 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/wamoten_HK
dc.relation.ispartofWave Motionen_HK
dc.rightsWave Motion. Copyright © Elsevier BV.en_HK
dc.titleMass transport in a layer of power-law fluid forced by periodic surface pressureen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0165-2125&volume=39&issue=3&spage=241&epage=259&date=2004&atitle=Mass+transport+in+a+layer+of+power-law+fluid+forced+by+periodic+surface+pressureen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.wavemoti.2003.10.002en_HK
dc.identifier.scopuseid_2-s2.0-1042278517en_HK
dc.identifier.hkuros90380en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1042278517&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue3en_HK
dc.identifier.spage241en_HK
dc.identifier.epage259en_HK
dc.identifier.isiWOS:000188889100005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats