寧東鴨子蕩水庫(kù)垂向一維水溫分布數(shù)值模擬研究

1、寧夏大學(xué)碩士學(xué)位論文寧東鴨子蕩水庫(kù)垂向一維水溫分布數(shù)值模擬研究姓名：馬鴻林申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：水利水電工程指導(dǎo)教師：李春光201204AbstractWimtherapidsocio—economicdevelopmentdemandforenergyisalsofastgrowinghydropowerasacleanandrenewableenergyismoreandmoredevelopedTheconstructionof

2、thereservoiristhedevelopmentofwaterresourcesinonewayThereservoirisaversatilewaterconservancyfacilities，itcannotonlybringhugeeconomicbenefitsinpowergeneration，irrigation，floodcontrol，navigation，fisheries，andcanalsoserveas

3、awatersourceforagriculturalandindustrialwaterandwaterforurbanresidentsthereservoirwatertemperatureisoneoftheimportantfactorsofreservoirwaterbodyitschangeswillbringaseriesofeffectsforthewaterphysicalandchemicalproperties，

4、aquaticlife，cropsandagriculturalandindustrialproductionTherefore，theresearchanalysisandforecastingchangesinwatertemperatureofthereservoirdistributionlawhaveveryimportantsignificanceforstrengtheningthecomprehensiveutiliza

5、tionofresourcesinthereservoirprotectingandimprovingtheecologicalenvironment：Basedonsumminguptheresultsofpreviousstudies，one—dimensionalheatdiffusionmechanism，analysingavarietyoffactorsthatmayhaveanimpactonthereservoirwat

6、ertemperature，themathematicalmodelequationoftheverticalonedimensionalwatertemperatureisestablished，thecontrolequationisdiscretedwithfinitedifferencemethod，finallytheequationsofthereservoirwatertemperatureisobtainedGiveni

7、nitialandboundaryconditions，usingmatlabsoftwarecomputerprogramtosimulatethedistributionlawoftheannualwatertemperaturechangesinYazidangReservoirthemainresearchcontentsandresultsareasfollows：1Basedonone—dimensionalthermald

8、iffusionmechanismtheverticalone—dimensionwatertemperaturemathematicsmodelisestablished，usingthefinitedifferencemethodtodiscrete，andprogrammingthecorrespondingcalculationprocedure；2ThewatertemperaturemodelfortheYazidangre

9、servoirisusedtesearchwatertemperaturechangesinthelawaccordingtothecalculationresults，theannualvariationofthereservoir’SwatertemperatureisanalyzedTheresultsshowthatthewaterbodythroughouttheyearmostlyisinthestateofthewater

10、temperaturestratification，butthereisthreemonthsthatthereservoiriscoveredbyice，inacompletelymixedstate；3TlleverticaltemperaturedifferenceistheminimuminMarchandSeptemberthroughouttheyear，watertemperaturedifferenceislargein

11、June，JulyandAugust，andwaterbodyisobviouslystratifiedAutumnrollshowsupinOctoberverticalmixingofwaterbodystrengthensAscoveredbyiceinwinterwaterbodyshowstemperaturestatedistributionWatertemperatureinthebottomofthereservoirc

12、hangessmoothlyThesimulationresultsthroughcomparativeanalysisofthecalculatedvaluesareconsistentwiththecomputationvalue，theresultscanbetterreflectthechangesinwatertemperaturecharacteristicsKeywords：watertemperatureofreserv