摘要
Inthisarticle,the2-Dunsteadyviscousflowaroundtwocircularcylindersinatandemarrangementisnumericallysimulatedinordertostudythecharacteristicsoftheflowinbothlaminarandturbulentregimes.ThemethodappliedalternativelyisbasedonthefinitevolumemethodonaCartesian-staggeredgrid.Thegreatsourcetermtechniqueisemployedtoidentifythecylindersplacedintheflowfield.Toapplytheboundaryconditions,theghost-celltechniqueisused.Theimplementedcomputationalmethodisfirstlyvalidatedthroughsimulationoflaminarandturbulentflowsaroundafixedcircularcylinder.Finally,theflowaroundtwocircularcylindersinatandemarrangementissimulatedandanalyzed.Theflowvisualizationparameters,theStrouhalnumbers,anddragandliftcoefficientsarecomprehensivelypresentedandcomparedfordifferentcasesinordertorevealtheeffectoftheReynoldsnumberandgapspacingonthebehavioroftheflow.Theobtainedresultshaveshowntwocompletelydistinctflowcharacteristicsinlaminarandturbulentregimes.
出版日期
2011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）
