地下水模型Feflow介绍.ppt

TrainingGroundwatermodelingusingFEFLOW5.3,FEFLOW(FiniteElementsubsurfaceFLOWsystem),isoneofthemostoutstandingsoftwarepackagesforthesimulationofflowandmassand/orheattransportprocessesinsaturatedandunsaturatedporousmedia.,History,Functionalities,2-Dhorizontalorverticalor3-D1-D/2-Ddiscreteelementsforfracture/tube/channelflowFlow,massand/orheattransportDensitydependentflowSaturated/variablysaturated/unsaturatedflowandtransportGISinterfacefordataimportandexportSeparatetoolsforgeoreferencingimages(FEMAP),producingplots(FEPLOT/XPLOT)andfittingparametersforunsaturatedflow/sorption(FE-LM)Openprogramminginterface.,Licensingandmaintenance,LicensedviahardlockandlicensemanagersoftwareLicensetypes:F2:2DflowFM22DflowandmasstransportF32D/3DflowFM32D/3DflowandmasstransportFMH32D/3Dflow,massandheattransportFMHESEducationstarterkit(5limitedlicenses)-foruniversitiesonlySingleseatornetworklicensesOptionalmaintenancecontracthotline/supportservicefreeupdateservice,DemonstrationExercise(48p.)UsersManual(168p.)ReferenceManual(278p.)WhitePapersVol.I(360p.)WhitePapersVol.II(112p.)WhitePapersVol.III(42p.)WhitePapersVol.IV(122p.)OnlineHelp,AllmanualsareavailableprintedaswellasontheFEFLOWCD(AdobeAcrobatfiles*.pdf).,Documentation,GraphicalUserInterface,Messagebar,Workingwindow,Infoboxes,Shellmenu,Structure,FEFLOW-Shell,MeshEditor,MeshGenerator,ProblemEditor,SimulatorKernel,Postprocessor,InterfaceManager(IFM),DefaultFileandDirectoryStructure,Projectdirectory,femdata,supermsh,import+export,results,plot,Finiteelementproblemfiles(*.fem),Superelementmeshfiles(*.smh),Import/exportfiles(*.shp,*.trp,*.lin,*.pow.),Resultsfiles(*.dar,*.dac),Exportedplotdata(*.shp,*.lin,*.trp,*.pnt.),Fileformat,ASCII:*.trp,*.pnt,*.lin,*.ply,*.pow,*.dat,*.txt,*.rai,*.smh,*.dar,Binary:*.shp,*.dxf,*.tif,*.dbf,FEFLOWModelfilescanbesavedinBinaryorASCIIformat:,*.femfiniteelementmodelfiles*.dacmodelresultsfile,FEFLOWModelfilessavedinASCIIformat:,*.smhsuperelementfiles*.darreducedmodelresultsfiles,FEFLOWimportandexportfileformat:,Trainingprogram,Fr.23rdMarch2007,8:30IntroductionbyProf.Kaden卡登教授9:00FEFLOW地下水计算机模型特点（FEFLOWfeatures）10:00休息（Break）10:15FEFLOW操作与建模（SetupgroundwatermodelwithFEFLOW）12:00午饭（BreakforLunch）13:00FEFLOW操作（StepbystepusingFEFLOW）14:00休息（Break）14:15FEFLOW建立二维地下水模型（Stepbystepsetup2Dgroundwatermodel）16:30第一天培训结束,Trainingprogram,Sa.24thMarch2007,8:30建立二维地下水模型(Stepbystepsetup2Dgroundwatermodel)10:00休息（Break）10:15建立三维地下水模型(Stepbystepsetup3Dgroundwatermodel)12:00午饭（BreakforLunch）13:00建立溶质迁移模型(Stepbystepsetupmasstransportmodel)14:00休息（Break）14:15答疑讨论16:30第二天培训结束,FEFLOWTrainingExercise骆俊峰柏林WASY水资源规划及系统研究所,23rd25thMar.2007,JinanChina,中国济南，2007年三月23-25日,Modelbuilding,Analysis,Groundwatermodeling,Problem,InitialconditionsBoundaryconditionsMaterialproperties,ModelboundariesMeshing/GriddingTemporaldiscretization,Simulation,ComparisonwithmeasurementdataCheckforplausibility,Target,GIS,Problemspecification,DefinemodelareaDatapreparationandevaluationTopography(elevation,landuse,riveretc.)GeologyHydrology,climatedataGroundwaterextraction/artificialrechargeObservationdateforgroundwater/riverconsideredContaminantdata2D-or3DModeling?,Constructhydrogeol.Model,Evaluateavailablegeol.DataIdentifyandspecifyaquifersystemunconfinedorconfinedaquiferonelayerormulti-layersModeldefinetop/bottomelevationforeachlayerconsidered(unit:mormNN)Identifyhydraulicconductivityformodellayer(unit:10-4m/s)Porosity(unit:1,e.g.0.2=20%),Naturalgroundwaterrecharge(unit:10-4m/d),模型区概况Overviewofthemodelarea:,垃圾堆放场,污水处理厂,姆格尔湖,抽水井,农田,地表水,城区,森林,图列,Modelscenarioflowmodel,地表径流,outflow,GW-recharge,GW-flowdirection,GW-extraction,N,入流边界,出流边界,地下水流向,地下水补给,地下水抽水井,GW-recharge(Source10-4m/d),Wells1000m/d,Fixedhead32.0m(1stBC),Fixedhead46.0m(1stBC),初始水头:demo_head_ini.trp,渗流系数:conduc2d.trp,含水层底板标高:bot_san1.trp,含水层顶板标高:demo_relief.trp,含水层顶板Aquifertop,含水层底板Aquiferbottom,渗流系数Conductivitym/s,定水头边界(1stBC),模型数据Modeldata,地下水补给,定水头边界(1stBC),地下水抽水井,2D地下水流动模型2DModelscenarioflowmodel,Stepsto2Dmodelbuilding:,Supermeshdesign-模型区初步圈定划分Meshgeneration-生成有限单元网格Modeltypedefine-定义模型类型Flowdata:设置流动模型参数Flowinitials设置初始水头:demo_head_ini.trpFlowboundaries设置边界条件Flowmaterials设置模型流场介质水动力参数Transportdata:TransportinitialsTransportboundariesTransportMaterialsReferencedata,2D地下水流动模型建模主要步骤:,模型区离散化模型区初步圈定划分(Supermesh)有限单元网格（Finiteelement）,地下水模型建模:,底图文件:model_area.lin，demo_wells.pnt，mass_src.lin,文件夹:.WASYFEFLOW5.3demoexcercise,Meshgeneration:,Transportmapping,TMesh,Triangle(interface),Advancingfront,2Dmodelprojections:,Horizontalprojection,Verticalprojection,Axisymmetricprojection,2Dtransientsaturatedflowmodel,butwithconstantboundarycondition,定义地下水模型类:,2D非稳态饱和流动模型,但边界条件为常数,即不随时间变化,饱和流,非饱和流,非稳态流,定义模型类2D平面潜水流动模型,饱和流,流动问题,非稳态流,平面潜水,设置时间控制TemporalDescribethespatialandtemporaldistributionofcontaminantsand/ortemperaturefields;Estimatethedurationandtraveltimeofcontaminantsingroundwater;EvaluateremediationanddecontaminationstrategiesAssistindesigningalternativesandeffectivemonitoringschemes;Determinewell-sourceprotectionzonesEstimationandcontrolofstrategiesforgroundwatermanagementStudywaterexchargebetweenriverandgroundwaterStudysaltwaterintrusion,Modelapplication,Modelapplication,BASD(BestAdaptationtoStratigraphicData),Filterdevelopment,subdirectoryfiltertwofilesforeachfilter:*.fltDescriptionofthefilter