INFLUENCE OF SEEPAGE FACE OBLIQUITY ON DISCHARGE OF GROUNDWATER AND ITS POLLUTANT INTO LAKE FROM A TYPICAL UNCONFINED AQUIFER-中国Betway体育网页登陆

摘要 LabexperimentandmathematicalsimulationModularthreedimensionalfinitedifferencegroundwater(MODFLOW)wereperformedinasoiltanktosimulatethehydrogeochemicalinteractionbetweenlakeandtypicalunconfinedaquifer.Resultsshowthatthevelocitydecreasesexponentiallywiththetransectdistanceonseepageface.Themaximalvelocityoccursatthetoppointofseepageface.Theobliquityofseepagefacehasagreatinfluenceonthemaximumanddistributionofseepagevelocity.Withtheincreaseoftheobliquityofseepageface,themaximalvelocitydecreasesquicklyandthevelocitydistributionbecomesmuchmoreeven.Mostofgroundwaterflowandpollutantfluxdischargesthroughanarrowportionnearthetopofseepageface.Theflowandmassconcentratedinthenarrowportionincreasewiththedecreaseoftheobliquityofseepageface.Thesewillbenefittodesignareasonableandeconomicalscenariotomanagelakeshoreandtocontrolthepollutionoflakewaternearlakeshore.

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INFLUENCE OF SEEPAGE FACE OBLIQUITY ON DISCHARGE OF GROUNDWATER AND ITS POLLUTANT INTO LAKE FROM A TYPICAL UNCONFINED AQUIFER

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