Perspective on aircraft design and HPC development over 20 years Mattias Sillén 14 October 2009
Perspective on aircraft design and HPC development over 20 years
Mattias Sillén14 October 2009
Sida 22009-11-24IN 5000357-105 Utg 1 08.09 PowerPoint
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AIRCRAFT DESIGNCOMPETENCE AREAS
AeronauticalEngineering
Operational Analysisand HMI
TacticalSystem
WeaponsIntegration
StructuralTechnology
Simulators, Training& Support
Project Management EngineeringMethods & Tools
EmbeddedEmbedded I/O
Gro un d
OpA mp
Diode
U=1
Class G
Prop
GetSpe
Class H
Number
Class G
Prop
GetSpe
Class H
Number
Model Integration and System Simulation
f(t) -> L (s)
F
Structure Physicalsystems
ElectronicsOptronics
Control Information
Usage, NeedsRequirements
G(s)G(s)
F(.)F(.)
Models ofinformation objects, needs,services
Models ofphysical objects
MMIVirtual
surrounding
ArchitectureInterfaces
Support Systems & Software Platforms
VehicleSystems
AirframeDesign
SYSTEMS INTEGRATION
• Overall Design and Architecture• Survivability• Systems Safety and Reliability• ILS, Availability and Maintainability
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AERODYNAMIC SHAPING PROCESS
Concept designRequirements
Handbookmethods
Numericalsimulations
Wind tunneltest
Flighttests
Aerodynamicdatabases
Aerodynamicanalysis
Flight mechanicalsimulations
Performancesimulations
Mass, InertiaEngine system
Geometricdesign
Flight controldesign
Problems?
Tools Models Simulations/Evalutions FeedbackUsage
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Model verification flow
Model correction & update flow
10,000
Model/Desktop simulator
1,000
Integrationsimulator/rigs
100
Simulator
10
Pre-flight simulation
1
Flight test
COST/TEST POINT
NUMBER OF TEST POINTS
MODEL BASED DESIGNTEST COVERAGE USING MODELS
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WAKE VORTEX SIMULATION
VIDEO
NSCNSC
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WAKE VORTEX SIMULATION
VIDEO
1983 Cray 1 installedPanel methods for subsonic flowSurface discretization #1000 panelsRun time days/hours
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WAKE VORTEX SIMULATION
VIDEO
1989 Cray X-MP installedInviscid flow modeling methods has maturedVolume models with 50-200 kcellsRun time days/hours
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WAKE VORTEX SIMULATION
VIDEO
Early industrial attempts with N-S methods1991 Cray X-MP still installedVolume models with 1 McellsMonths of babysitting
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WAKE VORTEX SIMULATION
VIDEO
Viscous flow simulations enter designCray T3E Run time 1-2 days
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WAKE VORTEX SIMULATIONVIDEO
Introduction of unstructured grids – 2-5MpointsTime dependent flow simulationsLinux ClustersInviscid flow simulations in minutes/hourViscous flow simulations in hours/day
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WAKE VORTEX SIMULATION
VIDEO
Turbulent flow modelingModels in range 10-25 MpointsLinuxClustersRun time hours-days
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WAKE VORTEX SIMULATIONVIDEO
Flow simulations coupled with shape optimization