PROGRESS IN STUDIES ON ICE ACCUMULATION IN RIVER BENDS

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摘要 Rivericeisanimportanthydraulicelementintemperateandpolarenvironmentsandwouldaffecthydrodynamicconditionsofriversthroughchangesbothintheboundaryconditionsandthethermalregime.Theriverbendhasbeenreportedasthecommonlocationfortheinitiationoficejamsbecausethewaterflowalongariverbendismarkedlyaffectedbythechannelcurvature.Inthisarticle,theexperimentalstudiesabouttheiceaccumulationinariverbendarereviewed.Basedonexperimentsconductedsofar,thecriteriafortheformationoficejamsintheriverbend,themechanismsoftheiceaccumulationintheriverbendandthethicknessprofileoftheiceaccumulationintheriverbendarediscussed.Thetwo-equationturbulencemodelisusedtosimulatetheiceaccumulationunderanicecoveralongariverbend.Aformulaisproposedfordescribingthedeformationoftheicejambottom.Ourresultsindicatethatallsimulatedthicknessoftheiceaccumulationagreesreasonablywellwiththemeasuredthicknessoftheiceaccumulationinthelaboratory.
机构地区 不详
出版日期 2011年06月16日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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