File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Parallel fem les with one-equation subgrid-scale model for incompressible flows

TitleParallel fem les with one-equation subgrid-scale model for incompressible flows
Authors
KeywordsFinite element method (FEM)
Large-eddy simulation (LES)
Open channel flow
Subgrid-scale (SGS) model
Turbulence
Issue Date2010
PublisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/10618562.asp
Citation
International Journal Of Computational Fluid Dynamics, 2010, v. 24 n. 1, p. 37-49 How to Cite?
AbstractThis article develops a parallel large-eddy simulation (LES) with a one-equation subgrid-scale (SGS) model based on the Galerkin finite element method and three-dimensional (3D) brick elements. The governing filtered Navier- Stokes equations were solved by a second-order accurate fractional-step method, which decomposed the implicit velocity-pressure coupling in incompressible flow and segregated the solution to the advection and diffusion terms. The transport equation for the SGS turbulent kinetic energy was solved to calculate the SGS processes. This FEM LES model was applied to study the turbulence of the benchmark open channel flow at a Reynolds number Ret = 180 (based on the friction velocity and channel height) using different model constants and grid resolutions. By comparing the turbulence statistics calculated by the current model with those obtained from direct numerical simulation (DNS) and experiments in literature, an optimum set of model constants for the current FEM LES model was established. The budgets of turbulent kinetic energy and vertical Reynolds stress were then analysed for the open channel flow. Finally, the flow structures were visualised to further reveal some important characteristics. It was demonstrated that the current model with the optimum model constants can predict well the organised structure near the wall and free surface, and can be further applied to other fundamental and engineering applications. © 2010 Taylor & Francis.
Persistent Identifierhttp://hdl.handle.net/10722/134422
ISSN
2015 Impact Factor: 0.772
2015 SCImago Journal Rankings: 0.493
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, XXen_HK
dc.contributor.authorLiu, CHen_HK
dc.contributor.authorLeung, DYCen_HK
dc.date.accessioned2011-06-17T09:20:14Z-
dc.date.available2011-06-17T09:20:14Z-
dc.date.issued2010en_HK
dc.identifier.citationInternational Journal Of Computational Fluid Dynamics, 2010, v. 24 n. 1, p. 37-49en_HK
dc.identifier.issn1061-8562en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134422-
dc.description.abstractThis article develops a parallel large-eddy simulation (LES) with a one-equation subgrid-scale (SGS) model based on the Galerkin finite element method and three-dimensional (3D) brick elements. The governing filtered Navier- Stokes equations were solved by a second-order accurate fractional-step method, which decomposed the implicit velocity-pressure coupling in incompressible flow and segregated the solution to the advection and diffusion terms. The transport equation for the SGS turbulent kinetic energy was solved to calculate the SGS processes. This FEM LES model was applied to study the turbulence of the benchmark open channel flow at a Reynolds number Ret = 180 (based on the friction velocity and channel height) using different model constants and grid resolutions. By comparing the turbulence statistics calculated by the current model with those obtained from direct numerical simulation (DNS) and experiments in literature, an optimum set of model constants for the current FEM LES model was established. The budgets of turbulent kinetic energy and vertical Reynolds stress were then analysed for the open channel flow. Finally, the flow structures were visualised to further reveal some important characteristics. It was demonstrated that the current model with the optimum model constants can predict well the organised structure near the wall and free surface, and can be further applied to other fundamental and engineering applications. © 2010 Taylor & Francis.en_HK
dc.languageengen_US
dc.publisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/10618562.aspen_HK
dc.relation.ispartofInternational Journal of Computational Fluid Dynamicsen_HK
dc.subjectFinite element method (FEM)en_HK
dc.subjectLarge-eddy simulation (LES)en_HK
dc.subjectOpen channel flowen_HK
dc.subjectSubgrid-scale (SGS) modelen_HK
dc.subjectTurbulenceen_HK
dc.titleParallel fem les with one-equation subgrid-scale model for incompressible flowsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1061-8562&volume=24&issue=1&spage=37&epage=49&date=2010&atitle=Parallel+FEM+LES+with+one-equation+subgrid-scale+model+for+incompressible+flows-
dc.identifier.emailLiu, CH:chliu@hkucc.hku.hken_HK
dc.identifier.emailLeung, DYC:ycleung@hku.hken_HK
dc.identifier.authorityLiu, CH=rp00152en_HK
dc.identifier.authorityLeung, DYC=rp00149en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1080/10618561003801093en_HK
dc.identifier.scopuseid_2-s2.0-77952602230en_HK
dc.identifier.hkuros185831en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952602230&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue1en_HK
dc.identifier.spage37en_HK
dc.identifier.epage49en_HK
dc.identifier.isiWOS:000277858300004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLi, XX=8959643100en_HK
dc.identifier.scopusauthoridLiu, CH=36065161300en_HK
dc.identifier.scopusauthoridLeung, DYC=7203002484en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats