Grid Generation, Pre- and Post-Processing

GridGeneration,Pre-andPost-ProcessingandUserEnvironmentsinEngineeringNumericalModelingYaoZhengCenterforEngineeringandScientificComputation,ZhejiangUniversityCollegeofComputerScience,ZhejiangUniversityALectureatZhejiangUniversityJune,2002NationalAeronauticsandSpaceAdministration(NASA)NASAGlennResearchCenterTurbomachineryandPropulsionSystemsDivisionNASAGlenn(Lewis)ResearchCenterCleveland,Ohio,USANASAGlennResearchCenterAerospacePlaneandItsPropulsionSystemNASAGlennResearchCenterNumericalSimulationofAerospacePlanesNASAGlennResearchCenterOUTLINEMyExperienceinEngineeringNumericalModelingIndustrialApplicationsComputingEquipmentEnablingTechnologyGridGenerationCurrentGridMethodsDRAGONGridMethodFlowSimulationbasedonDRAGONGridMethodConcludingRemarksonDRAGONGridMethodPre-andPost-ProcessingUserEnvironmentsMotivationParallelSimulationUserEnvironmentInteractiveGeometryUtilityEnvironmentComputationalApplicationsVisualSteeringofGridGenerationConcludingRemarksImageGalleryforComputationallyIntensiveApplicationsMyExperienceinEngineeringNumericalModelingIndustrialApplicationsEnablingTechnologyBackAnalysisintheDeformationandConsolidationofPorousMediaMyExperienceinEngineeringNumericalModelingIndustrialApplicationsBackAnalysisintheDeformationandConsolidationofPorousMediaMyExperienceinEngineeringNumericalModelingIndustrialApplicationsBackAnalysisintheDeformationandConsolidationofPorousMediaMyExperienceinEngineeringNumericalModelingIndustrialApplicationsAdaptiveFiniteElementSimulationofGroundFreezingMyExperienceinEngineeringNumericalModelingIndustrialApplicationsAdaptiveFiniteElementSimulationofGroundFreezingMyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalModelingofCastingProcessMyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalModelingofCastingProcessMyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalModelingofCastingProcessMyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalSimulationofHeatTransfer(NuclearSafety)MyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalSimulationofHeatTransfer(NuclearSafety)MyExperienceinEngineeringNumericalModelingIndustrialApplicationsNumericalSimulationofHeatTransfer(NuclearSafety)MyExperienceinEngineeringNumericalModelingIndustrialApplicationsMyExperienceinEngineeringNumericalModelingIndustrialApplicationsFlowSolutionaroundTurningVanesinaChannelMyExperienceinEngineeringNumericalModelingIndustrialApplicationsFlowSolutionaroundTurningVanesinaChannel–PressureContoursMyExperienceinEngineeringNumericalModelingIndustrialApplicationsFlowSolutionaroundTurningVanesinaChannel--DensityandMachNumberContoursMyExperienceinEngineeringNumericalModelingIndustrialApplicationsFlowSolutionaroundCoreTurbineVanesinanAnnularCascadeMultidisciplinaryComputationalEngineeringAreasofapplicationsincludeCivil(GeotechnicalEngineering;StructuralEngineering;EngineeringOptimization),Mechanical(Casting;Welding;HeatTransfer),Aerospace(ComputationalFluidDynamics;PropulsionSystems;Turbomachinery)andNuclearEngineering(NuclearSafety),andMechanics(SolidMechanics;StructuralMechanics).Expertiseinthefieldsofstressanalysis,structuralanalysis,fluiddynamics,heattransferanalysis,andstructuraldynamics.NumericalMethodsemployedincludeFiniteElement,FiniteDifference,andFiniteVolume.TypesofGridSchemes:BaselineAnalysis,AdaptiveAnalysis,andetc.MyExperienceinEngineeringNumericalModelingIndustrialApplications--SolversAsof1994MyExperienceinEngineeringNumericalModelingComputingEquipmentGrid(Mesh)GenerationPre-andPost-ProcessingUserEnvironmentsMyExperienceinEngineeringNumericalModelingEnablingTechnologyMyExperienceinEngineeringNumericalModelingEnablingTechnologyPracticalCFDapplicationsneedVersatilegeometrycapabilitysurfacemodelingandvolumegridgenerationFastturnaroundAccurateandrobustsolutionGridgenerationisthepacingelementoftheCFDprocessObjectives:GridgenerationFastQualityReliableAutomaticOUTLINEMyExperienceinEngineeringNumericalModelingIndustrialApplicationsComputingEquipmentEnablingTechnologyGridGenerationCurrentGridMethodsDRAGONGridMethodFlowSimulationbasedonDRAGONGridMethodConcludingRemarksonDRAGONGridMethodPre-andPost-ProcessingUserEnvironmentsMotivationParallelSimulationUserEnvironmentInteractiveGeometryUtilityEnvironmentComputationalApplicationsVisualSteeringofGridGenerationConcludingRemarks3DstructuredgridforaninvestmentcastingcomponentGridGenerationCurrentGridMethods3DstructuredgridforaninvestmentcastingcomponentGridGenerationCurrentGridMethodsChimeragridforthespaceshuttlelaunchvehicleGridGenerationCurrentGridMethodsGridGenerationCurrentGridMethods2DadaptivegridsGridGenerationCurrentGridMethods2DgridgenerationGridGenerationCurrentGridMethods2DgridgenerationGridGenerationCurrentGridMethods2DgridgenerationGridGenerationCurrentGridMethods2DadaptivegridsGridGenerationCurrentGridMethods2Dadaptivegrids2DadaptivegridsGridGenerationCurrentGridMethodsGridGenerati