使用非定常粘性和无粘求解器研究双螺旋桨在不同船舶尾流场中的性能（英文）-豆柴文库

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使用非定常粘性和无粘求解器研究双螺旋桨在不同船舶尾流场中的性能（英文）
Title:PerformanceAnalysisofDualPropellersinDifferentShipWakeFieldsusingNon-steady-stateViscousandInviscidSolvers
Abstract:
Theperformanceofdualpropellersinvariousshipwakefieldsiscrucialforoptimizingthepropulsionsystemandensuringefficientoperationofmarinevessels.Thisstudyfocusesoninvestigatingtheperformanceofdualpropellersusingnon-steady-stateviscousandinviscidsolverstosimulatedifferentshipwakeconditions.Theaimistogaininsightsintothebehaviorofthepropellersinrealisticoperatingconditionsandtoidentifyanypotentialimprovementsforenhancingoverallpropulsionefficiency.
1.Introduction
Thedesignandperformanceanalysisofmarinepropulsionsystemsarevitalfortheefficientoperationofships.Thewakefieldcreatedbyashipaffectsthepropellerperformance,leadingtochangesinthrust,torque,andefficiency.Dualpropellers,alsoknownastwin-screwpropellers,arecommonlyusedinshipstoimprovemaneuverability,reducevibration,andenhancepropulsionefficiency.Thisstudyaimstoevaluatetheperformanceofdualpropellersundervaryingshipwakeconditionsusingnon-steady-stateviscousandinviscidsolvers.
2.Methodology
Thefirststepintheanalysisinvolvesgeneratingtheship'swakefieldfordifferentoperatingconditionsusingcomputationalfluiddynamics(CFD)techniques.Thetransientviscoussolverisutilizedtosimulatethenon-steady-statenatureoftheflow.Theinviscidsolverisemployedtounderstandthepropellerperformanceinpotentialflowconditions.Bothsolversconsidertheinteractionbetweenthepropellersandtheshipwakefield,allowingforacomprehensiveevaluationofperformance.
3.WakeFieldSimulation
Awell-validatedCFDmodelisdevelopedtoaccuratelysimulatetheship'swakefield.Realisticshipoperatingconditions,suchasvaryingspeeds,propellersizes,andhullshapes,areconsidered.Thenon-steady-stateviscoussolvercapturesthecomplexandtime-varyingflowphenomenawithinthewake,includingturbulence,boundarylayerseparation,andvortices.Theinviscidsolver,ontheotherhand,neglectstheviscouseffectsandfocusesonthepotentialflowfieldaroundthepropellers.
4.PerformanceAna