基于有限體積法的二維淺水水流數(shù)值模擬技術(shù)研究.pdf

1、的學(xué)位或證書(shū)而使用過(guò)的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說(shuō)明并表示謝意。學(xué)位論文作者簽名：羨彩7彳雩乏簽字日期：≥口／2年j月，移日學(xué)位論文版權(quán)使用授權(quán)書(shū)本學(xué)位論文作者完全了解凄銣戈芬有關(guān)保留、使用學(xué)位論文的規(guī)定，有權(quán)保留并向國(guó)家有關(guān)部門(mén)或機(jī)構(gòu)送交論文的復(fù)印件和磁盤(pán)，允許論文被查閱和借鬩。本人授權(quán)凌咎勱哆以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索，可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位

2、論文。(保密的學(xué)位論文在解密后適用本授權(quán)書(shū))，學(xué)位論文作者鼢昊彳7侈、鋤虢奠手玫簽字日期：矽，易年上月，D日簽字日期：工Df緝f月／≥日舉付論文作者畢qk去向：工作單位：通訊地址：電話：郵編：AbstractWiththerapidpaceofeconomicdevelopment，theenvironmentalpollutionproblemshavebecomeincreasinglyseriousPeoplehavebeenaw

3、areoftheenvironmentalproblemswhichbroughtaseriesofsocialproblemsrelatedtohumansurvivalInrecentyears，thepaceofglobalindustrializationacceleratedleadtomoreseriousrivers1akesandotherwaterresourcespollutionHowtocleanupthecon

4、taminationofwaterpollutants，aswellastoexplorethewidermarineenergyhasbecometheneedfortodayssocio—economicdevelopmentBecauseofthis，shallowwaterflowproblemshavebeenfocusonthedomesticandinternationalComputationalFluidDynamic

5、sbythehydrodynamicscholarsSeveralscholarshaveputforthmanyrelatedcalculationmethodsThisarticlefocusesonhowtosimulatethemovementoftwo—dimensionalshallowwaterflowbasedonthefinitevolumemcthodWedevelopanewfinitevolumemethodRi

6、emannsolveroftwo—dimensionalshallowwaterequationsnumericalcalculationonthebasisofthepreviousdevelopmentWeestablishedthenewRiemannsolverfinitevolumemodelfortWOdimensionalshallowwaterequations，anddiscussedfinitevolumediscr

7、etizationprocessandthebasicformatInthispaper，thenewfinitevolumeRiemannsolvingformatthatweproposedisimplementedontriangularunstructuredmeshesTheproposedapproachconsistsofapredictorstageandacorrectorstageontimeintegrationA

8、predictorco盯cctorsteppingisusedfortimeintegrationInthepredictorstep，anonconservativeapproachisusedtodeterminetheintermediatevalueswhereasinthecorrectorstep，afullyconservativesolutionisachievedbysolvingaseriesoflocalRiema

9、nnproblemsbasedondatafromthepredictorstepInthepastthemajorityofscholarsoftenignorethesourcetermwhentheyusingfinitevolumemethodtosimulatetheshallowwatermovementWiththecontinuousimprovementofthedepthoftheoryandtechnologyin