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《Correction factor to dye-measured flow velocity under varying waterand sediment discharges不同输沙量下染料测定流速的修正因子》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、JournalofHydrology389(2010)205–213ContentslistsavailableatScienceDirectJournalofHydrologyjournalhomepage:www.elsevier.com/locate/jhydrolCorrectionfactortodye-measuredflowvelocityundervaryingwaterandsedimentdischargesa,b,*bbbcGuang-huiZhang,Rong-tingLuo,YingCao,Ru
2、i-changShen,X.C.ZhangaStateKeyLaboratoryofEarthSurfaceProcessesandResourceEcology,BeijingNormalUniversity,Beijing100875,ChinabSchoolofGeography,BeijingNormalUniversity,Beijing100875,ChinacUSDA-ARSGrazinglandsResearchLaboratory,ELReno,OK,USAarticleinfosummaryArti
3、clehistory:Dye-tracingtechniquewasawidelyusedmethodtodeterminethevelocityofoverlandflowinsoilero-Received15September2009sionstudiesunderbothlaboratoryandfieldconditions.FewstudieswereperformedtoquantifytheReceivedinrevisedform24May2010effectsofsedimentloadoncorrec
4、tionfactoronsteepslopes.ThisstudywasconductedtoinvestigateAccepted31May2010thepotentialeffectsofsedimentloadoncorrectionfactorofoverlandflowtodeterminemeanvelocityinagluedhydraulicflumeunderawiderangeofhydraulicconditionsandsedimentload.SlopegradientThismanuscript
5、washandledbyLaurent321Charlet,Editor-in-Chief,withtheassistance(S)variedfrom8.7%to34.2%,unitflowrate(q)from0.66to5.2610ms,andsedimentload(Qs)11ofChong-yuXu,AssociateEditorfrom0to6.95kgms.TheReynoldsnumber(Re)rangedfrom350to5899.Meanvelocitywascal-culatedfrom
6、thevolumetricrelationusingmeasuredflowdepthbyadigitallevelprobeandflowdis-Keywords:charge.TheresultsshowedthatcorrectionfactordecreasedasSincreasedandincreasedasReOverlandflowincreasedforsediment-freeflowwithameanvalueof0.659.Correctionfactorcouldbeestimatedwith2Vel
7、ocityalogarithmicfunctionofSandRe(R=0.883).Forthesediment-ladenflow,correctionfactorvariedfromDyetracer0.233to0.682withameanvalueof0.466.Thecorrectionfactordecreasedassedimentload(Qs)CorrectionfactorincreasedandincreasedasReincreased.Itcouldbeestimatedwithalogari
8、thmicfunctionofRe,andSedimentloadQ(R2=0.796).Forthecombinationofsediment-freeandsediment-ladenflows,thecorrectionfactorvar-siedfrom0.233to0.783withameanof0.505.Thecorr
