地下水滲流數(shù)值模擬中數(shù)學(xué)模型運用的初步研究.pdf

1、淮南工業(yè)學(xué)院碩士學(xué)位論文地下水滲流數(shù)值模擬中數(shù)學(xué)模型運用的初步研究姓名：肖利申請學(xué)位級別：碩士專業(yè)：水文學(xué)及海洋大學(xué)指導(dǎo)教師：錢會鄭西來2001.2.1、AbstraetItisverypivotaltousethemathematicalmodelcorrectlyinthenumericalsimulationofgroundwaterseepage，especiallyforthewatersourceareabythenon‘i

2、ntegralriverSohowtousemathematicalmodelproperlyhasdirecteffectontheaccuracyofthewatersourceareasconsentproducedquantityForthepurposestudied，inthefirstchapterinthisarticlewebuildtheidealizedhydrologygeologicmodel，thenuset

3、hethreedimensionalandtwo‘dimensionalmathematicaltosimulatenumericallythebuiltidealizedhydrologygeologicmodel，andthencomparethetwomodel’sseepagecharacterseepagequantitydraw—down，etcundertheconditionoftheconstantflowandcon

4、stantdrawdownByusingthethree—dimensionalsimulation，theisolinefigureofgroundwaterlevelshows：whengroundwaterispumpedbytheriver，whetheraquiferoussurfaceoraquiferousbottom，thetouchdowntundishisformedatthetwosidesofthefiver；w

5、hileusingtwodimensionalmodel，thetouchdowntundishisnotformedatanothersideofthefiverforaquiferoussurfaceandaquiferousbottomThisisinaccordancewithpracticewhilethecomparisonoftheirdrawdownandseepagequantityshowstheeffectofth

6、etwodimensionalsimulationdoesntagreewithpracticeSobythesimulationtodifferentidealizedhydrologygeologicmodel，theconclusionisobtained，namelybecausegroundwaterseepagegetacrossriverwhenpumpinggroundwaterbythenonintegralfiver

7、itisfeasibletousethreedimensionalmathematicalmodeltosimulategroundwaterseepageFinallyusingthreedimensionalmodelanalyzestheinfluencingfactorsproblemofwatersourceareasgroundwatergettingacrossfiverbythenonintegralfiverandth

8、econclusionismadeInthesecond，third，fourthchapterinthisarticle，theproblemhowtwo—dimensionalmodelandthree—dimensionalmodelisappliedintopracticeisanalyzedHerewetaketheevaluationofgroundwaterresourceinDashigongwatersourceare

9、aNanzhengcounty，HanZhongcityasaexampleCombininghydrologygeologicconditionsweapplytwo—dimensionalmodelandthreedimensionalmodelrespectivelytosimulateandcalculatethegroundwaterseepage，andthenmodifyandpredictthebuiltmodelByt

10、hecomparisonofgroundwaterlevelandsuppliedquantityundertheconditionsofconstantflowandconstantdrawdowntIleconclusionfromthebuiltidealizedmodelistestifiedFromtheanalysisofthepracticalsample，evenweobtainthefollowingconclusio

11、n：Inthegroundwaternumericalsimulationofwatersourceareabythefiverifthefiverisnonintegral，itisimpertinenttotaketheriveranditsaquiferousbottomasthegivenwaterheadboundaryThree—dimensionalmathematicalmodelmustbeusedtosimulate