Embed Size (px)
Citation preview
TOOLS developed in Task 1.1TOOLS developed in Task 1.1High Fidelity Aerodynamic Design ToolsHigh Fidelity Aerodynamic Design Tools
INCASCatalin NaeM. Victor Pricop
Aerodynamic Design of Small Commercial Aircraft, CESARPrague, 18-19 March 2009
Task 1.1 Task 1.1 –– High Fidelity Aerodynamic Design Tools High Fidelity Aerodynamic Design Tools
CESAR Project M12M6 M24
Task 1.1 Definition Evaluation Development Integration
ST 1.1.1
Baseline configuration definition
M18
Tools evaluation
ST 1.1.2 Tools development
Tools for CESAR project
SubSubTask Task 1.1.11.1.1 –– Baseline models definitions and CFD tools evaluationBaseline models definitions and CFD tools evaluation
AW-1 HL-TAF-TBaseline
CADDMU
AC-1Low speed
Baselinedefinition
BaselineWT
Models3D a/c 3D wing 2D airfoils 2D high lift Models
AC 2ReferenceDatabaseAC-2
High speed AW-2 HL-LAF-L
WP1 WP2 WP5CESAR objectives
Special interest IDS(WP5)p
WP5 Output (WP5)
SubSubTask Task 1.1.11.1.1 –– Baseline models definitions and CFD tools evaluationBaseline models definitions and CFD tools evaluation
Objectives
• To provide reference configurations (for airfoils, wing and full 3D a/c, CAD format)• To identify a set of specific tools tailored and evaluated for the specific requirements of
CESAR project• To enable tools integration in WP5.1.
Achievements
Reference configurations for:
• AW-1 - 3D configuration for wing for AC-1 (INCAS and VZLU)• AW-2 - 3D configuration for wing for AC-2 (DLR)AW 2 3D configuration for wing for AC 2 (DLR)• HL-L - high lift system for laminar wing (VZLU and FOI)• HL-T - high lift system for turbulent wing (IoA and INCAS)
Specific tools evaluated:Specific tools evaluated:
• High lift tools for small a/c configurations• VLM tools for full 3D analysis of small a/c configurations• Propeller simulation tool for global analysis of small a/c configurationPropeller simulation tool for global analysis of small a/c configuration
SubSubTask Task 1.1.1.1. 2 2 –– Tools adaptation in order to meet specific needsTools adaptation in order to meet specific needs
TConcept IDE Sketch
WP5
TOOL
Geometry CADDMU
Mesh
LS Flow
Analysis CFD
VLM
PropulsionSpecial
Data s/x
Propulsion
Drag
IT toolsWP1
SubSubTask Task 1.1.1.1. 2 2 –– Tools adaptation in order to meet specific needsTools adaptation in order to meet specific needs
Objectives
• To provide a highly efficient package of tools for aerodynamic analysis, tailored for the specific requirements of small a/cspecific requirements of small a/c
• Tools for aerodynamic data sharing and exchange.• To adapt and improve specific tools to be used for aerodynamic analysis and global design
process
Achievements
• CFD tools adaptation for small a/c analysis. • Code tuning for laminar and turbulent flow analysis• Reference grids for CFD analysesReference grids for CFD analyses • CAD tools for complex geometry (using CATIA environment)• Optimization tool tailoring for specific need in CESAR project• Evaluation of special tools for specific analysis (VLM, propeller)
SubSubTask Task 1.1.11.1.1 –– Baseline models definitions and CFD tools evaluationBaseline models definitions and CFD tools evaluation
Baseline configurations for CESAR projectBaseline configurations for CESAR project
SubSubTask Task 1.1.1.1. 2 2 –– Tools adaptation in order to meet specific needsTools adaptation in order to meet specific needs
Adapted tools for CESAR projectp p j
SubSubTask Task 1.1.1.1. 2 2 –– Tools adaptation in order to meet specific needsTools adaptation in order to meet specific needs
CFD to Experiment toolPropeller tool
CFD_to_Experiment tool
CAD_to_CFD tool
Examples Examples –– VLM ToolsVLM Tools
Examples Examples –– VLM Tools (cont.)VLM Tools (cont.)
Examples Examples –– VLM Tools (cont.)VLM Tools (cont.)
Comparisons with Cessna 172 data
Comparison with wt data in SKY project
Comparisons with Cessna 172 data
Examples Examples –– MSES CodeMSES Code
Examples Examples –– CFD Tools CFD Tools –– 2D2D1.6
091
1.11.21.31.41.5
0.30.40.50.60.70.80.9
Exp. DLRDxUNSp - turb
00.10.2
-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
DxUNSp turb.DxUNSp - Free tran.
1.21.31.41.51.6
0 50.60.70.80.9
11.1 Exp. DLR
DxUNSp - turb.
DxUNSp - Free tran.
00.10.20.30.40.5
0 0 01 0 02 0 03 0 04 0 05 0 06 0 07 0 08 0 09D2UNSp – k-eps model & tran 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09D2UNSp k eps model & tran
Examples Examples –– CFD Tools CFD Tools –– 2D2D
D2UNSp – k-eps model & tran
Examples Examples –– DRMR ToolDRMR Tool
Y Y
Y c
n n m m m n
lkk l
k
n
l
m
, ( , , , ..., , , , , ..., ,..., , ,..., )
,
1 2 2
00
Examples Examples –– Propeller Modeling ToolPropeller Modeling Tool
Examples Examples –– Sensitivity Analysis Tool using RSM CodeSensitivity Analysis Tool using RSM Code
Examples Examples –– CAD ToolsCAD Tools-Parametric generic models for AC1 and AC2CATIA V5 S i t 2 4K li h-CATIA V5 Scripts, 2.4K lines each
-Topology is the same for AC1 and AC2 – in the current stage-Analytic formulations for airfoils, fuselage shape, fairingsNo windshield engine nacelles landing gear fairing for AC1(easy to add)-No windshield, engine nacelles, landing gear fairing for AC1(easy to add)
-No control surfaces-No interactive (tree) parameters – possible, but difficult
Examples Examples –– CAD ToolsCAD Tools
Examples Examples –– CAD ToolsCAD Tools
• Simplification of geometry• Reduced number of patches• Clean, analytic curves• NO SPLINES• Points: from thousands to
dozens
Examples Examples –– CAD ToolsCAD Tools
CATIA h b id f hiCATIA hybrid surface meshing-one day for a configuration
Next step is to reconfigure surface patches to enable easier and betterNext step is to reconfigure surface patches, to enable easier and better meshing.
