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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
