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Tradition of Aerodynamic Research
Aerospace Building Hessert Laboratory
1888 1940 1992 2008
White Field LaboratoryZahm Manned Glider Flight
50,000 sq-ft of laboratory and office space
2001
Center for Flow Physics and Control (FlowPAC)
1920
What is Flow Physics and Control Control: Techniques for modifying fluid flows to
achieve desired outcomes
Physics: Rely on basic understanding of the flow to minimize control authority
(
Identified Need Basic Research
IMPACT
Applied Technology
Con
trol
+ =
-15dBSound Reduction
(Flow Physics) (Control)
Signature Research Areas
Aero-acoustics Aero-optics Fluid-structure
Interactions Gas-turbine
Propulsion Multi-phase Flows Sensors and Flow
Control Actuators
FlowPAC: Professional Recognition• GE University Strategic Alliance (USA) member
• Honeywell Master Agreement
• GM Master Agreement
• Boeing R&D University (Pending)
• ~ 22 Faculty
8 fellows of one or more professional societies
3 associate fellows of professional societies
4 books
6 editors or associate editors of technical journals
FlowPAC: Performance Trajectory6-year Growth Amount of Research Grants
Number of Graduate Students
Number of Undergraduate Students
AY03 AY04 AY05 AY06 AY07 AY08
Graduate Students 28 32 36 40 50 60
Undergraduate Students
5 10 10 10 10 12
Post-docs 2 4 5 6 6 6
Research Faculty 2 2 2 2 2 2
Visiting Faculty 2 2 2 1 3 3
New Funding (M$) 1.20 2.60 4.90 6.20 10.62 6.50
FlowPAC: Industry PartnersConsortium Members
• Boeing (R&D University)• General Electric (USA Member)• Honeywell (Master Agreement)• Bell Helicopter/Textron• Orbital Research†
Industry Partners
• Pratt & Whitney• Northrop-Grumman• General Motors• Shell Oil• Chrysler• Philip Morris• AgilOptics• Spectral Energies†
• Volpe• Metro-laser• Photon• Aoptics• Innovative Technology Applications†
• Mach Zero†
• Xinetics† • MZA†
• Teledyne Scientific & Imaging† Small Business
FlowPAC: Government Funding
Air Force AFOSR ARO ONR Navy DARPA NSF NASA-Glenn NASA-Langley Cal. Energy Comm DoT DoE DoD Joint Technology Office
13 U.S. Government Funding Agencies
FlowPAC: Patents
Averaging ~ 5 patent applications/year
~75% are joint patents with companies
New patents awarded in AY08:
“DBD Plasma Actuator” Patent 7,380,756 B1
“Plasma Anemometer” Patent 7,275,013 B1
AY08 Highlights: White Field Lab
Hessert Laboratory
WHITE FIELDLABORATORY
10,000 sq-ft Offices for 5 Conference Room Model shop 3 Facilities: - Mach 0.6 Wind Tunnel - Transonic Compressor Facility - Transonic Turbine Facility
AY08 Highlights: Mach 0.6 Wind Tunnel
3’-sq x 9’ long test sections Large optical access Low turbulence Temperature controlled
1750 h.p. motor Variable r.p.m. a.c. 8’ diam., 2-stage fan 1000 ton-hr ice-storage chilled water cooling
AY08 Highlights: Compressor Facility
400 h.p. 15,000 r.p.m. Design tip-Mach: 1.1 Magnetic levitation rotor bearings Rotor optical access
AY08 Highlights: Turbine Facility 800 h.p. compressor
500 h.p motor Design 300 h.p. turbine Magnetic levitation rotor bearings High-loading rotor design
Gas Turbine ResearchStall Detection and Control
Turbine Blade Tip-casing Flow Control
Plasma Sensors
LPT Blade Flow Separation Control
Aggressive Inter-turbine Duct Control
“Flow Control Optimized Engine”
IMPACT
Separation Control in LPT Cascade PakB blade shape Plasma actuator at x/Cx=0.675 Simulates low Re effects on LPT at higher altitudes
“Unsteady” F+=0.9
Actuated Blade
200% reductionin loss coeff.
Reduced separation bubble
Tip Clearance Flow Control LPT blade-tip flow control
PS SS
g/cx
Casing
Blade
Baseline Flow
“Plasma Tip”; g/c=2%
7% reduction in loss coeff.
Surface Flow Visualization
Tip Clearance Flow Control LPT casing flow control
Baseline Control
TG-vortex
Loss Coeff.
Surface Visualization
24% reduction in loss coeff.
Flow Vectoring
Baseline
Plasma Actuator
Flow
=xs/R
xs
Plasma actuator more effectivein vectoring flow as radius decreases.
Norm
aliz
ed v
ect
or
angle
Actuator Voltage
Decreasing R
IMPACT