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1、浙江大學碩士學位論文AbstractWiththeincreasinglyseverecontradictionbetweenrapiddevelopmentofeconomyanddeficiencyoflandresource，coastalregionwheretherearevastmudflatsforreclamationhasexperiencedwavesofreclamationfever,resultingirreversibleimpacttosurroundingwaterse
2、speciallyinmacro-tidalbay．111emacro—tidalbayswimmultiple—inletscontrolledmainlybytidalcurrentwouldbeindangerwithreclamationintensitybeyondtheirlimitedadjustmentability．SanmenBayisatypicalsemi-enclosedmacro—tidalbaywiⅡlmultiple—inletsstretchingdeepintoth
3、elandinalternativearrangementwithlanguettemudflatsonwhichmanyreclamationprojectshavebeenimplementedfordecades，resultinginconsiderabledecreaseoftidalprismandvariationsofhydrodynamicenvironmentinSanmenBay．Withthepurposeofpossessingtheregularityofresponsei
4、nmultiple··inletsmacro-·tidalbaystoreclamation，andmakingfurthereffortsonreferenceinformationofsustainablereclamation，a2DhydrodynamicmodelofagrandsimulatingregionincludingSanmenBay,TaizhouBayandotherareaisestablishedbyDelfl3Dwhichcouldreproduceaccurately
5、dryingandfloodingofthevasttidalflatsandadjusttothetortuouscoastlinewimorthogonalcurvilineargrl‘ds，andthen，basedonthis，3simulatingplanaccordingtoreclamationsituationof2004，2009and2020areimplementedtoresearchthemultipleresponseofthehydrodynamicenvironment
6、inSanmenBay,takingtidalflow,waterexchangecapability,tidalprismandmomentaryflowthrou【曲representativecross—sectionsandtheallocationamongthemindifferentinletsasindexes．Theresultshowsthattheresponsecharacteristicindifferentkindsoftidal—inletsinSanmenBayisdi
7、fferent．Inthefirstkindofinlets，thatisShipuchannel，whichconnectswithopenwaters，thereductionofwatersareaofthewholeSanmenBayresultsinthereductionofcurrentvelocityandmomentaryflowinasmallscale．Inotherl(indwithoutdirectconnectionwithopenwater,theresponseofti
8、dalcurrentvelocity,momentaryflowthroughtheentranceandtidalprismalestronglyrelatedtothereclamationprojectsininletscalculatedorintheirsub—inlets，ratherthanthoseoutsideofthemorevensurroundingtheentranceofthem，althoughthemomentaryflo
