A New Model for Velocity Profiles in Estuarine Waters

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摘要 Watermotioninestuarinewatersistheresultoftheactionofvariousdynamicfactors.Firstly,basedonthehydrodynamiccharacteristicsinestuarinewaters,neglectingthenonlineareffectsofvariousflowhydrodynamicfactors,thelogarithmvelocityprofileoftidalcurrentandthecubicvelocityprofileofHansenandRattray(1965)madeforlinearsuperpositionatasenseoffirstorder,anewmodelforvelocityprofileinestuarinewatersisestablished.Then,byintroducingtheleastsquaremethodcombinationofenumeration,thevelocityprofiledataofwind-drivencurrentmeasuredinthelaboratoryandthatobservedattheNorthandtheSouthBranchesoftheYangtzeEstuaryareverifiedandcomparedwithotherformulas,allwithsatisfactoryresults.Theresultsshowthatthenewmodelnotonlyconsiderstheinfluencesofvariousdynamicfactors,suchastide,windforce,run-offanddensitypressurewithhighaccuracy,butalsoprovidesreasonableboundaryconditionsonthebottomforhydrodynamicsnumericalsimulationinestuarinewaters.Thereby,theaccuracyandcredibilityofnumericalcomputationandpredictionofwaterflowareimproved.Theresearchistheoreticallyimportantfortheestuarinehydrodynamics.
机构地区 不详
出版日期 2010年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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