摘要
Aspatiallyaveragednumericalmodelwasdevelopedtodescribetheerosionofcohesivesediment.Togetherwithknownempiricalrelations,themodelcomprisesanewformulationforresuspensionduetofishactivity.ExperimentsonerosionofnaturalsedimentsintheannularflumeatAachenUniversityareusedformodelcalibration.Empiricalcoefficientswereevaluatedwithgeneticalgorithmstoachievethebestagreementbetweenthemodelresultsandtheexperimentaldata.Thepresentedmodelshowssufficientflexibilitytoaccountforvarioussedimentproperties,includingdifferentsedimentsources,naturalandartificialcontaminants,presenceorabsenceofaquaticorganisms,andresultsinanaveragecoefficientofdetermination,R290.5%betweenthemodelresultsandtheexperimentaldata.Modelvalidationallowsittobeassumedthatdifferentcontaminantsaffectbedpropertiesdifferently.Fishactivityplaysanessentialroleincorrectresuspensionprediction.Furthersedimenterosionexperimentswithcarefullychosenconditionswillallowamorecomprehensivemodelevaluation.Thepresentedmodelisintendedtoserveasabuildingblockinthedevelopmentofahydraulic-sediment-biotamodelwithintheW3-Hydro:WaterQualityEventDetectionforUrbanWaterSecurityandUrbanWaterManagementBasedonHydrotoxicologicalInvestigationsprojectthataimstoimprovetheknowledgeconcerningbioavailability,transport,fate,andeffectsofcontaminantsontheaquaticenvironment.
出版日期
2017年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
