The effects of step inclination and air injection on the water flow in a stepped spillway: A numerical study

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摘要 Inthiswork,weperformanumericalstudyofawaterflowoverasteppedspillway.ThisflowisdescribedbytheReynoldsaveragedNavier-Stokesequation(RANS)associatedwiththeturbulencek-εmodel.Theseequationsaresolvedusingacommercialsoftwarebasedonthefinitevolumeschemeandanunstructuredmesh.Theair-waterflowwasmodeledusingvolumeoffluid(VOF)andmultiphasicmethods.Thecharacteristicsoftheflowwereinvestigatedincludingthetotalpressure,thevelocityprofile,etc..Weanalyzetheeffectsontheflowstructureofthestepsandcountermarchinclination,theairinjectionthroughthecountermarchintothewaterflowandthedynamicswaterdischarges.Resultsshowthattheinclinationofthecountermarchrelativetotheverticalandtheairinjectionintothewaterflowincreasethetotalpressureintheneighbourhoodofthesteps.
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出版日期 2017年02月12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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