AAE 520 Projects

AAE 520 Projects• Engine Inlet Flow

– B.J. Austin, David Brockmiller, Mike Melchior, Kyle Indermuehle

• Utilizing Ground Effect to Increase the Downforce of Race Cars– Fuguo Zhou, David Ong, Jens Lindquist

• Motorcycle– Chris Wright, Indranil Maulik, David Fernandez, Zhouyan Zhang, Bradley

Gifford

• Minimum Drag Bodies– Shann Rufer

• Position Indexer for Rotating Pressure Sensitive Paint Measurements– Matt Long

• PSP and TSP use in the Ludweig Tube– Cholwon Peak

•

•Model run at 0 and 10o yaw from +/- astall

•Balance calibrated at both yaw angles•Forces on support posts measured at both yaw angles•Tunnel velocity = 21.5 m/s

Wind Tunnel Testing of Diamond-Wing Body for Stability Analysis

Experimental Assessment of the Aerodynamic Performance of Numerically

Optimized Rotor-blade Airfoils

Rounded LE

Moment recovery region

Thin waist for minimum drag

May 2, 2000 AAE 520

•Transonic wind tunnel for research/classes•Desired Test section Mach number of 0.80•Speed control: flapper valve on fan diffuser

Introduction

He-Ne Laser

Oil-film

InterferometerFlatPhotodiodes

FocusingLens

, y

x

0

50

100

150

200

250

300

350

0 20 40 60 80 100 120 140 160

Time (sec)

Upstream Diode

Downstream Diode

Shear Stress Measurements On a Flat Plate Using Oil-Film Interferometry

temperature sensitive paints (TSP) in the

Mach 4 Quiet-Flow Ludwieg Tube

526

528

530

532

534

536

538

Second Throat(Fixed Double Wedge)

RectangularDiffuser

Contraction

30.4 cm ø, 20.7 m LongDriver Tube

Test Section

RectangularNozzle

Sliding Sleeve

Tube-Turn Clamps

Burst Diaphragm

To VacuumSystem

Flow Study in a Curved Engine Inlet Using Pressure Sensitive Paint

Project Suggestions

• Design Constraints

– Driver in recumbent position

• Height= 41 inches, Width = 27 inches

– 24 inch Diameter wheels

– Height off salt- 3 inches

– Standard suspension system

– Aerodynamically stable

Land Speed Record Streamlined Motorcycle

Sam Wheeler’ EZ-Hook277 mph

New Wagner Streamliner

~10 % span increase~ 5.5% High speed drag reduction

Alpha = 9

Serrated Tip

Project Suggestions

Ludweig TubePSP in Mach 6Polymer Ceramic or PolyTMSP PSPCondensationTransonic NozzleSchlieren for M=4

Transonic TunnelAcoustic and Performance

MotorcycleStreamliner175 cc Land Speed RecordPro Stock

Raked TipSerrated Tip

PSP with Nitrogen Injection

Micro pilotMethod for aircraft parameter measurements – drag to within 1 count

Storm airplaneNASA Wallops Island – Drop from balloon – penetrate storm – withstand 10 g’s

Micro turbine

Delta wing UAV – S duct inlet