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排水型船外飘砰击和甲板淹湿的经验估算方法（英文）.docx

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排水型船外飘砰击和甲板淹湿的经验估算方法（英文） Title:EstimatingtheImpactofFreeboardFloodingandDeckImmersioninaScowVessel Introduction: Inmaritimeengineering,itisessentialtounderstandthepotentialrisksandconsequencesassociatedwithvariousscenarios,suchastheimpactoffreeboardfloodinganddeckimmersioninascowvessel.Accurateestimationmethodsarecrucialinevaluatingthesafetyandstabilityofsuchvesselsunderdifferentloadingconditions.Thispaperaimstodiscussapproachestoestimatetheeffectsoffreeboardfloodinganddeckimmersioninascowvesselsituation. 1.ScowVesselCharacteristics: Beforedelvingintotheestimationmethods,itisimportanttounderstandthebasiccharacteristicsofascowvessel.Ascowisaflat-bottomedboattypicallyusedfortransportinggoodsincalmwaters.Theirbroad,flat-bottomshapemakesthemstablebutvulnerabletofloodinganddeckimmersionifnotproperlyloadedorduringadverseweatherconditions. 2.EstimatingFreeboardFlooding: Freeboardreferstothedistancebetweenthewaterlineandthedeckedgeorgunwaleofaship.Ifascowvesselisimproperlyloadedorencountersheavywaves,itcanleadtofreeboardflooding.Toestimatetheextentoffreeboardflooding,severalfactorsneedtobeconsidered: 2.1.LoadDistribution:Properdistributionofthecargoonthescowvesseliscrucialformaintainingproperfreeboard.Unevenlydistributedloadsmaycausetiltingandincreasedvulnerabilitytoflooding.Estimatingthestabilityandfreeboardcanbedoneusingstabilitysoftwareorcalculationsbasedonthevessel'sstabilitycriteria. 2.2.WaveHeightandEncounterFrequency:Understandingthewaveclimateandtheprobabilityofencounteringspecificwaveheightsisessential.Waveheightdatacanbeobtainedfromhistoricalrecords,wavebuoys,orwavemodels.Utilizingthisdata,theprobabilityofencounteringcertainwaveheightscanbecalculatedusingstatisticalmethodssuchasthePoissondistributionorMonteCarlosimulations. 2.3.ScowVesselShapeandStabilityAnalysis:Byunderstandingthegeometryandstabilityofthescowvessel,incombinationwithwaveloads,stabilityanalysiscanprovideestimatesofmaximumfreeboardflooding.ComputationalFluidDynamics(CFD)simulationscanbeemployedtodep