摘要
Rivericeisanimportanthydraulicelementintemperateandpolarenvironmentsandwouldaffecthydrodynamicconditionsofriversthroughchangesbothintheboundaryconditionsandthethermalregime.Theriverbendhasbeenreportedasthecommonlocationfortheinitiationoficejamsbecausethewaterflowalongariverbendismarkedlyaffectedbythechannelcurvature.Inthisarticle,theexperimentalstudiesabouttheiceaccumulationinariverbendarereviewed.Basedonexperimentsconductedsofar,thecriteriafortheformationoficejamsintheriverbend,themechanismsoftheiceaccumulationintheriverbendandthethicknessprofileoftheiceaccumulationintheriverbendarediscussed.Thetwo-equationturbulencemodelisusedtosimulatetheiceaccumulationunderanicecoveralongariverbend.Aformulaisproposedfordescribingthedeformationoftheicejambottom.Ourresultsindicatethatallsimulatedthicknessoftheiceaccumulationagreesreasonablywellwiththemeasuredthicknessoftheiceaccumulationinthelaboratory.
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)