flow routing on barton creek using hec-ras：流对巴顿溪hec-ras路由

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1、FlowRoutingonBartonCreekusingHEC-RASPreparedbyVenkateshMerwadeCE394K.2SurfaceWaterHydrologySpring2005IntroductionStartingaHEC-RASProjectChannelGeometryUnsteadyFlowDataUnsteadyFlowSimulationIntroductionThegoalsofthisexerciseare:·GiveyouanunderstandingofhowtheHEC-RASmodelisrunforunsteadyflowanalysiso

2、nBartonCreekbetweenLostCreekBlvdandloop360.·UnderstandthehydrologicprocessesalongtheBartonCreekbycomparingtheoutflowhydrographfromthemodelwiththeobservedhydrograph.Themodel’sgeometrydataandunsteadyflowdataarestoredinBartonRAS.zipfileathttp://www.ce.utexas.edu/prof/maidment/gradhydro2005/Routing/Bar

3、tonRAS.zipDownloadBartonRAS.zipandunzipittoaworkingdirectory(BartonRAS)onyourcomputer.BartonRAS.ziphasthefollowingfiles:BartonCreek.xls:MSExcelfilethatcontainsflowandstagedataforthetwoUSGSgagingstations(BartonCkatLostCreekBlvd–USGSStationID:08155240andBartonCkatloop360–USGSstationID:08155300).Barto

4、n.g01:HEC-RASGeometryFileforBartonCreek.Geometryfilescontainallofthegeometricdatafortheriversystembeinganalyzed.Thegeometricdataconsistof:crosssectioninformation;hydraulicstructuresdata(e.g.,bridgesandculverts);coefficients;andmodelingapproachinformation.Forthisexercise,weareonlyusingthechannelgeom

5、etrydataandtherearenostructures/bridgesinthegeometryfile(Geometry17fileshaveextensionfromg01tog99.The"g"indicatesaGeometryfile,whilethenumbercorrespondstotheorderinwhichtheyweresavedforthatparticularproject.).Barton.p05:HEC-RASPlanFileforBartonCreek.Theplanfilecontains:adescriptionandshortidentifie

6、rfortheplan;alistoffilesthatareassociatedwiththeplan(e.g.,geometryfileandsteady/unsteadyflowfile);andadescriptionofallthesimulationoptionsthatweresetfortheplan.(Planfileshavetheextension.p01to.p99.The"p"indicatesaplanfile,whilethenumberrepresentstheplannumber).Barton.u02:UnsteadyFlowDataFileforBart

7、onCreek.Unsteadyflowdatafilescontain:flowhydrographsattheupstreamboundaries;startingflowconditions;anddownstreamboundaryconditions.(Unsteadyflowdatafileshavetheextension.u01to.u99.The"u"indicatesanunsteadyf