長江口水動力及污水擴散影響的數(shù)值模擬.pdf

1、Y1030829分類號UDC密級灑浮大學碩士學位論文NumericalSimulationofHydrodynamicCharacteristicsandSewageDiffusioninYangtzeEstuaryKoKoAung郭安指導教師姓名奎墟態(tài)塾拯塑漁太堂漁注堂瞳南京市西康路1號闡尿巾四尿遨l虧～一一申請學位級別王堂亟專業(yè)名稱鲞旦：塹崖壁塹連蘭猩論文提交日期圣QQZ生至月論文答辯日期至QQZ生蘭旦!目學位授予單位和日期塑造態(tài)堂

2、、生旦目答辯委員會主席：芒叢逝塾堡論文評閱人：筮塑筮熬拯宋志堯教授中國南京二Oo七年三月ABSTRACTYangtzeEstuaryisplayingthevitalroleinthenationaleconomyconstructionbyitsuniquelocationandcopiousresourcesofwaterandsoilTodeveloptheresources，thecharacteristicofmotionof

3、currentandthelawofmasstransportisneededtoknowinthisregionThisprovidedtheessentialtechniquesupportfortheprogrammingresearchandtheengineeringdesignThusthisregionisalwaysberesearchedTostudythevelocitydistribution，currentpat

4、temoftheresearchdomainandthehydrodynamicscharacteristicintheYangtzeEstuarythetwomodules(GFGEN，RMA2，RMA4)ofSMS(SttrfacewaterModelingSystem)modelwillbeuseinthisstudyThemoduleGFGENwillbeusedtocreatethefiniteelementmeshofthe

5、studyarea，andthemoduleRMA2willsimulatethehydrodynamicsconditionofthestudyareaTheRMA2isatwo—dimensionaldepthaveragedfiniteelementhydrodynamicmodelItalsoappliesfiniteelementmethodtOdiscretethehydrodynamicsequationinthispap

6、erAdditional，itUSeSNcwton—RaphsonconvergenceschemeandthefrontalsolutionschemeforunsymmetricalmatricesdevelopedbyHoodtoobtainasolutionItshowsthatthecalculationsareingoodagreementwiththeresultsofthefieldobservationdataAtla

7、st，thepaperuses2DqualitymodelRMA4topredictthetransportationanddiffusionofthesewageinYangtzeRiverestuaryThecalibrationandvalidationshowedthatthemodelsarefairlystableandapplicableforstudyingregulationprojectsandgetsomequal