A Numerical Model for Mixing Areas of Pollutant Discharging into Tidal Flows-中国期刊网

摘要 -Acombinednumericalmodelforcomputingmixingareasofpollutionverticaljetdischargingintotidalflowshasbeendeveloped.Thisnumericalmodeliscomposedofa2-Ddepth-averageddynamicfar-fieldnumericalmodelanda2-Dverticaldynamicnear-fieldnumericalmodel.Theformerusesfinitenodemethodtocomputevelocity,andimprovedfinitenodemethodtocomputepollutantconcentrationdistribution;thelatterisak-eturbulencemodel,andusesSIMPLE(Semi-ImplicitMethodforPressureLinkedEquations)methodtocomputevelocity.Atthesametime,theformerprovidesboundaryconditionsforthelatter.Thismodelcansimulatebothfar-fieldpollutantconcentrationdistributionandnear-fieldverticalrecirculationquicklyandprecisely.ThismodelhasbeenverifiedbymeasureddataofpollutantFoftheDachangreachoftheChangjingRiverandtestdatapresentedbyChenelal.(1992).Onthebasisofverification,theauthorsuseadesignedhydrographtocomputethismixingareaforacer

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A Numerical Model for Mixing Areas of Pollutant Discharging into Tidal Flows

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A Numerical Model for Mixing Areas of Pollutant Discharging into Tidal Flows

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