Title of article
ACFDmodelforparticledispersioninturbulentboundarylayerflowsOriginalResearchArticle
Author/Authors
A.Dehbi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
9
From page
707
To page
715
Abstract
InLagrangianparticledispersionmodeling,theassumptionthatturbulenceisisotropiceverywhereyieldserroneouspredictionsofparticledepositionratesonwalls,eveninsimplegeometries.Inthisinvestigation,thestochasticparticletrackingmodelinFluent6.2ismodifiedtoincludeabettertreatmentofparticle–turbulenceinteractionsclosetowallswhereanisotropiceffectsaresignificant.ThefluidrmsvelocitiesintheboundarylayerarecomputedusingfitsofDNSdataobtainedinchannelflow.Thenewmodelistestedagainstcorrelationsforparticleremovalratesinturbulentpipeflowand90°bends.Comparisonwithexperimentaldataismuchbetterthanwiththedefaultmodel.Themodelisalsoassessedagainstdataofparticleremovalinthehumanmouth–throatgeometrywheretheflowisdecidedlythree-dimensional.Here,theagreementwiththedataisreasonable,especiallyinviewofthefactthattheDNSfitsusedarethoseofchannelflows,forlackofbetteralternatives.TheCFDBestPracticeGuidelinesarefollowedtoalargeextent,inparticularbyusingmultiplegridresolutionsandatleastsecondorderdiscretizationschemes.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2008
Journal title
Nuclear Engineering and Design Eslah
Record number
895041
Link To Document