ANSYS-CFX-11.0-旋转机械分析系统介绍

ANSYSCFX11.0:旋转机械分析系统介绍ANSYSCFX11.0:旋转机械分析系统介绍韩海EngineeringManagerANSYSK.K.ANSYSCFXTurboSystemANSYSCFXTurboSystem旋转机械系统组成旋转机械系统设计过程旋转机械系统分析过程概要更新案例ANSYSCFXTurboSystemANSYSCFXTurboSystem旋转机械系统组成旋转机械系统设计过程旋转机械系统分析过程概要更新案例Low-headTurbineCourtesyMicroHydroResearchCentreNottinghamTrent,UK.OverviewofBasicsOverviewofBasicsTurboSystemComponents•旋转机械分析基本需求:–了解性能水泵或涡轮的流动模拟RuralPerucommunityhydrogeneration,5kWLow-headTurbine,CourtesyMicroHydroResearchCentre,NottinghamTrent,UK.OverviewofBasicsOverviewofBasicsLow-headTurbine,CourtesyMicroHydroResearchCentre,NottinghamTrent,UK.TurboSystemComponents•旋转机械分析基本需求:–了解性能–基本设计–几何，网格水泵或涡轮的流动模拟OverviewofBasicsOverviewofBasicsTurboSystemComponents•旋转机械分析基本需求:–了解性能–基本设计–几何，网格–物理设置–流动模拟水泵或涡轮的流动模拟Low-headTurbine,CourtesyMicroHydroResearchCentre,NottinghamTrent,UK.OverviewofBasicsOverviewofBasicsTurboSystemComponents•旋转机械分析基本需求:–了解性能–基本设计–几何，网格–物理设置–流动模拟–后处理–效率分析水泵或涡轮的流动模拟Low-headTurbine,CourtesyMicroHydroResearchCentre,NottinghamTrent,UK.VistaCCDCompressorPreliminaryDesign-PCAVistaCCDCompressorPreliminaryDesign-PCATurboSystemComponentsVistaCCPPumpPreliminaryDesign-PCAVistaCCPPumpPreliminaryDesign-PCATurboSystemComponentsTurboGeometryTurboGeometryBladeModelergeometry:•BladeGen:叶片设计–中弧面视图，B2B视图–特定的草图工具•BladeEditor:固体建模–创建三维CAD–固体模型修改•自动创建以下部分:–单个或所有叶片–结构分析需要的轮毂和叶片–流动区域–以名字来选择TurboSystemComponentsBladeEditingin3DCADModeBladeEditingin3DCADModeBladeEditinginDM•演示!•固体模型设计•编辑中弧面•角度/厚度视图，控制点定义•椭圆/截断前缘尾缘形状•多个层控制•自动叶尖间隙TurboSystemDesignProcessTurboMeshTurboMesh•BladeModeler可以直接连接以下模块:–TurboGrid–ICEMCFD–CFX-Mesh–FEAinWB•TurboGrid–快速，高质量–半自动化–全部六面体网格O-gridlayernearbladeTurboSystemComponents•自动拓扑结构生成–H,J,C,L,O,tip•高度缺省化,人工控制•快速的体网格生成•分层,用户控制点,边切分TurboMeshTurboMeshTurboSystemComponentsTurboGridExamplesTurboGridExamplesTurboSystemComponentsBasicCFDSimulationBasicCFDSimulationTurboPre•快速的旋转机械特定GUI•平凡多通道•自动设置CFXSolver•旋转机械专用求解器•旋转机械特定的边界条件•旋转坐标系TurboPost•二维“unwrapped”视图•中弧线平均•性能报告TurboSystemComponentsBasicFEASimulationBasicFEASimulation气动设计气动设计结构设计结构设计机械分析机械分析BladeModelerBladeModelerTurboSystemWB/SimulationWB/SimulationTurboSystemComponentsBasicBladeRowBasicBladeRow自动叶片分析•一键式网格划分–边界层,周期条件,预设•一键式CFD求解–TurboPre,边界,物理问题–效率监测•一键式后处理–类型相关的报告–HTML,交互式的•可获得“Fullmode”TurboSystemComponentsDefinethe3-Dbladegeometry.Thegeometryisreadyforanalysis.Definethe3-Dbladegeometry.Thegeometryisreadyforanalysis.“Newblademesh”taskautomaticallycreatesthegeometryandmeshfortheanalysis.“Newblademesh”taskautomaticallycreatesthegeometryandmeshfortheanalysis.AsolidmodelisgeneratedinDesignModeler.AsolidmodelisgeneratedinDesignModeler.AhybridmeshwithinflationiscreatedintheMeshingApplication.AhybridmeshwithinflationiscreatedintheMeshingApplication.“NewbladeCFDsimulation”taskstartsTurbo-Prewiththenewlycreatedmesh.“NewbladeCFDsimulation”taskstartsTurbo-Prewiththenewlycreatedmesh.Turbo-Prewizardwalksthroughtheanalysispreparation.Turbo-Prewizardwalksthroughtheanalysispreparation.Inafewclicksthesolvercanbestarted,ortheusercanenterthegeneralmode.Inafewclicksthesolvercanbestarted,ortheusercanenterthegeneralmode.Forthissimplemesh,thesolutiononlyrequiresafewminutes.Forthissimplemesh,thesolutiononlyrequiresafewminutes.InCFX-Post,theappropriatereporttemplateisautomaticallyloaded.InCFX-Post,theappropriatereporttemplateisautomaticallyloaded.Thereportincludestabulatedperformanceresults…Thereportincludestabulatedperformanceresults…Bladeloadingcharts…Bladeloadingcharts…3-Dplotsofthegeometry…3-Dplotsofthegeometry…Circumferentiallyaveragedplots…Circumferentiallyaveragedplots…LEcutplots…LEcutplots…Speed,EfficiencySpeed,Efficiency8081566CoreSolverSolveterminationSolveinitializationComponent135154364339CFX-11CFX-1015stagecompressorcourtesySiemensAGTurboSystemAnalysisProcessTurboParallelTurboParallel最近GE测试CFX的并行线性化…–单通道约1百万节点–全周92个流道共(8千8百万节点)TurboSystemAnalysisProcessCourtesyGECorporateR&DCenterTurboParallelTurboParallelTurboSystemAnalysisProcess461200Mb44m4690…21NumberofCPUs7.75hrs2407Mb88m92…………5.75hrs46Mb1.9m27.22hrs20Mb1.0m1TrueWallClockTimeDefinitionFileSizeMeshNodesNumberofPassagesCourtesyGECorporateR&DCenterNon-EquilibriumNucleationNon-EquilibriumNucleation•全非平衡成核模型:–欧拉－欧拉MPF组织–两年多的研发结果–例子:非平衡蒸汽流•物理模型:–单气相–离散的液滴相–“液滴相变”–基于方程的均相和/或非均相物理EquilibriumSolutionNon-equilibriumsolutionMoisturedelay技术领先的MPF-NE成核模型TurboSystemAnalysisProcessp/p_ref.20.40.60.811.2E32ptot/p_ref1.21.622.42.83.23.64E32ptot/p_ref.811.21.41.61.822.2E32p/p_ref.70.80.911.1E32ptot/p_refspan[]0.811.21.41.61.822.200.20.40.60.81E32part-loaddesignover-loadp/p_refspan[]0.70.80.911.100.20.40.60.81E32•Modelsteamturbine•Equilibriummodel•Non-equilibriummodel•ComparisontodataCourtesy„WorkshopTurbomachinery“,GdanskSept.2006A.G.Gerber,R.Sigg,N.Sürken,L.Völker,M.V.CaseyTurboSystemAnalysisProcessNon-EquilibriumNucleationValidationNon-EquilibriumNucleationValidationdesignoff-design0.50.60.70.80.911.11.20.250.751.251.75FlowCoefficientϕ/ϕref[-]Efficiencyη/ηref[-]MeasurementEQSNESNon-EquilibriumNucleationValidationNon-EquilibriumNucleationValidationTurboSystemAnalysisProcessCourtesy„WorkshopTurbomachi