复杂边界下大涡模拟的格子Boltzmann并行方法-豆柴文库

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复杂边界下大涡模拟的格子Boltzmann并行方法
Title:AGridBoltzmannParallelMethodforLargeEddySimulationinComplexBoundaries
Abstract:
Largeeddysimulation(LES)isawidelyusedcomputationalfluiddynamicstechniqueforsimulatingturbulentflows.Toaccuratelycapturecomplexflowphenomenainpracticalapplications,suchasflowsovercomplexboundaries,agridBoltzmannparallelmethodhasbeendeveloped.ThispaperpresentsadetailedanalysisofthegridBoltzmannparallelmethodforLESincomplexboundaries,discussingitsadvantages,challenges,andpotentialapplications.
Introduction:
Largeeddysimulation(LES)hasproventobeavaluabletoolforstudyingturbulentflowsinvariousengineeringandscientificfields.However,accuratelysimulatingcomplexboundaryconditionsremainsachallenge.ThegridBoltzmannparallelmethodoffersanovelapproachtoaddressthisissueandhasshownpromisingresultsincapturingcomplexflowphenomena.
GridBoltzmannMethod:
ThegridBoltzmannmethodisaparticle-basedcomputationalmethodwidelyusedforsimulatingturbulentflows.Inthismethod,thevelocitydistributionfunctionisdiscretizedonacomputationalgrid,andtheparticleinteractionsaresimulatedbasedontheBoltzmannequation.ThegridBoltzmannmethodhasadvantages,suchasitsabilitytohandlecomplexflowfeatures,suchasshearing,splitting,andmergingflows,whilemaintaininghighaccuracyandefficiency.
ParallelComputing:
ParallelcomputingplaysacrucialroleinthegridBoltzmannmethodforLESincomplexboundaries.Thelargecomputationaldomainandhigh-resolutionrequirementsnecessitateefficientutilizationofcomputationalresources.Thispaperexploresvariousparallelcomputingtechniques,suchasdomaindecomposition,loadbalancing,andcommunicationoptimization,toenhancethescalabilityandefficiencyofthemethod.
TreatmentofComplexBoundaries:
Modelingcomplexboundariesaccuratelyisacriticalchallengeinturbulentflowsimulations.ThepaperdiscussesthetreatmentofcomplexboundariesinthegridBoltzmannparallelmethod,includingimmersedboundarymethods,cut-cellmethods,andoversetmeshmethods.Thesetechniquesallowforbetterrepresentationofcomplexboundarygeometriesandfacilitatetheappli