摘要
Laboratoryexperimentsonlongitudinaldispersioninclear-waterandsediment-ladenopenchannelflowsarereported.Datafromtheseexperimentsandthoseavailablefrompreviousstudiesindicatethatthesuspendedsedimentpresentintheflowaffectsthelongitudinaldispersionprocess.Theobservedvelocitydistributionsoverthedepthofsediment-ladenflowsindicatethatthevelocitydeviatesfromthemeanvelocitymoreinsediment-ladenflowsthaninclear-waterflows.Thevelocitydistributionsoverthecrosssectionandsecondaryflowinthechannelarealsoexpectedtobealteredduetothepresenceofsuspendedsedimentsintheflow.Forthesereasons,moredispersionisfoundinsediment-ladenflowsthanincorrespondingclear-waterflows.Apredictorforthedispersioncoefficientinsediment-ladenflowsisproposed.
出版日期
2004年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)