Experimental Aerodynamics Laboratory

METUWIND C1

Specifications:

• Small scale suction type wind tunnel
• Axial fan driven by a 4 kW electric motor
• Flow conditioning (honeycombs and screens)
• Plexi-Glass transparent test section
• 0.3m x 0.3m square cross-section
• 25 m/s maximum velocity, Turbulence Intensity < 0.5%

Applications:

• Hot-wire and multi-hole pressure probe calibration

METUWIND C2

Specifications:

• Continuous Flow Blower Type Wind Tunnel
• Radial intake driven by a 18.5 kW electric motor
• Flow conditioning (honeycombs and screens)
• Plexi-Glass transparent test sections
• 0.6m x 0.6m square cross section
• 0.6m x 0.3m rectangular cross section
• 18 m/s maximum velocity, Turbulence Intensity < 1%

Applications:

• Active flow control on rectangular wings
• Active flow control on turbomachinery cascade test setup
• Wake measurements of bridge models

METUWIND C3

Specifications:

• Medium scale suction type wind tunnel
• Axial fan driven by a 45 kW electric motor
• Flow conditioning (honeycombs and screens)
• Plexi-Glass transparent test section
• 1m x 1m square cross section
• 25 m/s maximum velocity, Turbulence Intensity < 1%

Applications:

• Load measurements on 2-D airfoils and bridge models
• Surface pressure measurements on wing models
• Constant Temperature Anemometry (CTA) measurements
• Wake measurements on blades
• Particle Image Velocimetry Measurements

METUWIND C4

Specifications:

• Open-Jet Wind Tunnel Facility
• Axial fan driven by 45 kW electric motor
• Flow conditioning (honeycombs and screens)
• 1.7m jet exit diameter  
• 10 m/s maximum velocity, Turbulence Intensity < 2.5%

Applications:

• Model wind turbine testing and measurements
• Flow field measurements using Constant Temperature Anemometry (CTA) system
• Flow field measurements using Time-Resolved Particle Image Velocimetry ( TR-PIV) system

METUWIND Large Scale Wind Tunnel:

Specifications:

• Closed Loop
• 54 m x 18 m footprint
• Interchangeable Aeronautical/Open-jet Test Sections
• Multi-purpose:
  • 2.5 m x 2.5 m x 10 m Aeronautical Test Section
    • Max Speed: 80 m/s
    • Tu_x &lt: 0.1%
    • Contraction Ratio = 7.84:1
  • 3 m x 7 m x 20 m Boundary Layer Test Section
    • Max Speed: 26 m/s
    • Tu_x &lt: 2%
  • 3 m diameter Open-jet
    • Max Speed 66 m/s
    • Tu_x &lt: 0.3%
    • Contraction Ratio = 6.93:1
  • Driven by a 6x315 kW axial fan array (Total 1.8 MW, 2 m diameter fans)
  • Steel main structure. Test sections are mainly wood and Plexi-glass situated on steel frames.
  • Large Plenum around the Open-jet test section
  • Multiple honeycombs and screens
  • 750 kW cooling system
  • High precision external balance system
  • Automated Facility Control System
  • 60 m x 20 m x 15 m Hangar with large access doors and a 10 ton overhead crane
  • 3 MW transformer

Model Wind Turbine Test Rig

Specifications:

• 1 m to 1.4 m diameter rotors (adjustable pitch angles)
• Ability of air injection from hub to the channels in blade roots to investigate active flow control for various applications
• Driven by 1.5 KW Panasonic Servo Motor
• Equipped with HBM T20WN/5 Nm torque transducer
• Equipped with a 6-axis ATI Force/Torque transducer

Applications:

• Performance measurements studies
• Flow field measurements studies
• Active flow control studies
• Passive flow control studies

High Precision Force/Moment Balance

Specifications:

• Load balance system equipped with 6-axis ATI Force/Torque transducers
• Equipped with a stepper angle motor for angle of attack adjustment

Applications:

• Aerodynamic characteristics measurements of wing and bridge models in wind tunnels

Particle Image Velocimetry

Specifications:

• TSI Incorporated
• Two Dimensional, Stereoscopic, Time-Resolved, Particle Image Velocimetry System
• Litron LDY304 series diode pumped Q-switched Nd: YLF high repetition rate (0.2-20 kHz) laser. The laser is a dual power, dual cavity with output energy at 1 kHz at 527 nm up to 30 mJ per laser head per pulse
• Two 12-bit high speed (Phantom V640) digital camera with a maximum resolution of 2560x1600 pixels at a frequency of 1.5 kHz (4 megapixel at full resolution) and 16 GB of internal memory buffer
• A Model 610036 LASER PULSE Synchronizer
• A 3-Axis ISEL heavy duty traverse system utilized for capturing image data at multiple planes in a flow.
• A six-jet oil droplet generator that utilizes a Laskin nozzle to generate droplets of 1 µm in diameter, used for flow seeding. Pressurized air atomizes oil in the generator reservoir to produce the droplets. These generators are best used with olive oil.
• INSIGHT 4G Acquisition Data System Software
• LASER PULSE Light Arm
• Various Light Sheet Optics. Various camera lenses and filters
• Breadboard, Laser safety Glasses

Pressure Measurement

Specifications:

• 128-channel ESP pressure scanner units
  • DTC Initium DAQ pressure measurement system
• 16-channel DSA pressure Scanner from Scanivalve Corp

Applications:

• 5-hole pressure probe
• Pitot-static pressure probes
• Kiel probe
• Surface pressure measurements on wings

Data Acquisition System

Specifications:

• NI Compact DAQ -9172 8 slot USB Chassis
  • 2 x 32-channel NI-9205 analog input module
  • 8-channel NI-9472 24 V Sourcing Digital Output
  • 4-channel NI-9211 Thermocouple analog input module
• NI Compact RIO-9076 4 slot Ethernet Chassis
  • NI-9512 1 Axis Stepper Drive Interface Module
• LABVIEW programing software

Applications:

• Constant Temperature Anemometry (CTA) Measurements
• Pressure Measurements
• Motion Control Measurements