CFD Applications and Validations in Aerodynamic Design and Analysis - - PowerPoint PPT Presentation
3 rd International Symposium on Integrating CFD and Experiments in Aerodynamics CFD Applications and Validations in Aerodynamic Design and Analysis for Missiles Kwang-Seop Lee and Seung-Kyu Hong Agency for Defense Development 3 rd International
1/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Agency for Defense Development 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics
2/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
3/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
4/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
5/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
6/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
7/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
8/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
9/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Board of Trustees Board of Trustees Auditor Auditor
Ground Systems R&D Center Ground Systems R&D Center Aircraft/Missile Systems R&D Center Aircraft/Missile Systems R&D Center Information/ Electro-Warfare R&D Center Information/ Electro-Warfare R&D Center Core Technology R&D Center Core Technology R&D Center Defense Systems Test Center Defense Systems Test Center
*GV Test Range
*GV Test Range
Weapon * Naval Test
Weapon * Naval Test
*Aero Sys & Tech Test Facilities
*Aero Sys & Tech Test Facilities
Dual-use Technology Center Dual-use Technology Center
Staffs Staffs Vice President Vice President
President President
* Proving Ground * Proving Ground
Naval Systems R&D Center MIC(Ministry of Information and Communication) MOCIE(Ministry of Commerce, Industry and Energy) MIC(Ministry of Information and Communication) MOCIE(Ministry of Commerce, Industry and Energy) System Develop. Division Technology Division Test Facilities
* R&D Centers * R&D Centers
10/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
MND
ROC Plan Services
(ROC/T&E)
JCS
(Defense Master Plan/ROC)
DAPA
Industry/ Academia/ Institute Acquisition
ADD Initiation Industry Initiation
ADD DTQAA
11/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
ROC Decision Preliminary Study Purchase R&D Domestic Overseas International Devlp. Domestic Devlp.
Exploratory Development System Development Deployment Operation ROC Request ROC Initiation Development Mode Decision Service JCS MND DAPA
12/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
(Allowable) Aerodynamic Characteristics (Aerodynamic coefficients) Static Stability Trajectory Simulation Satisfed ? Confirm Configuration No Yes Resize (Not Allowable) Aerodynamic configuration Check Aerodynamic Performance Requirements
13/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
14/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
prediction tool
15/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
16/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
2 2
AIAA-95-1732-CP
3 4 5 6 7 c e llin d e xo fξ
ire c tio n
2 4 6 8 10 λ 1 λ
1
λ
1(m
ifie d )
17/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
1 . 6 8 3.64 3.92 3.64 0.56 1.12 1.12 0.56
H=4D
2.29 4.00 4.00 3.71 0.29 1.71 1.71 0.29
Mach 4.00 3.71 3.43 3.14 2.86 2.57 2.29 2.00 1.71 1.43 1.14 0.86 0.57 0.29 0.00
H=4D
Shock Instability Instability Cured
8.2 2 . 7 2.7 2 . 3 2 .
H=4D
16.7 16.0 12.0 5.0 2.6
H=4D
18/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
19/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Surface pressure Circumference pressure
Body Length(caliber) P/P∞
1 2 3 4 5 6
1 2 3 4
Exp.(windward) Exp.(leeward) Present
φ (windward=0, leeward=180) P/P∞
30 60 90 120 150 180 0.4 0.8 1.2 1.6 Present(1st-order) Present(2nd-order) EXPERIMENT
20/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Mach contours, Sr=1.45, M=0.85 Drag curves
21/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Mach contours, Sr=1.45, M=0.85
22/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Aerodynamic Interference with Thrust Plume Roll Induced Device Asymmetric Fin Aerodynamic Analysis of Flexible Body Spike Flow Simulation (Drag Reduction)
23/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Unsteady turbulent flow, M=1.2
24/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
25/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
D H x y
nozzle
D : exit diameter H : distance flat plate
Main Parameter
26/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
H=5D H=4D H=3D
Mach 4.00 3.73 3.46 3.19 2.91 2.64 2.37 2.10 1.83 1.56 1.29 1.01 0.74 0.47 0.20
H=6D
27/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
28/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
X/D Wall Pressure(P/Pt) 1 2 3 0.1 0.2 0.3
Present Experiment
29/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Pressure Distribution
Radial Distance(Cm) P(psia)
5 10 15 20 25 30 35 40 50 100 150 200 250 300 350 Experiment Present (upper bound) Present (lower bound)
KVLA Motor Test H=99 cm
Pressure and Temperature Measure Locations
30/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Sketch of a full scale Vertical Launching System (VLS)
31/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
32/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
33/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
0.3 0.1 3.5 2 . 2 3.0 0.2 0.2 0.4 0.5 0.4
Mach pressure temperature
34/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
35/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
36/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
37/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
P10 P9 Plenum Top Plate Plenum Top Plate
38/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Time (sec.) P1 (psi)
0.1 0.2 0.3 0.4 0.5 10 20 30 40 50
PRESENT TEST
Time (sec.) P5 (psi)
0.1 0.2 0.3 0.4 0.5 10 20 30 40 50
PRESENT TEST
P1 P5
39/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Jet interaction flowfield near and on body surface
40/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development Vortex structure due to body and side jet
Jet interaction flowfield near and on body surface
41/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
Effect of flight altitude on jet interaction
42/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
43/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
March-April 2003 France
Without Jet N
Single Jet N N C Jet ref ref
T C C k N Q S = +
Without Jet M
Single Jet Jet M M C Jet ref ref ref
T L C C k N Q S L = +
44/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development
45/45 3rd International Symposium on Integrating CFD and Experiments in Aerodynamics Missile Aerodynamics Branch, Agency for Defense Development