Subsonic Wind Tunnel

The RA-WT-30 SUBSONIC WIND TUNNEL is a tool used in aerodynamic research to study the effects of air moving past solid objects. A wind tunnel consists of a closed tubular passage with the object under test mounted in the middle. A powerful fan system moves air past the object. The test object is instrumented with a sensitive balance to measure the forces generated by airflow. 

Features 

• Static pressure in a reduced cross-section

• Determining the volume flow with a Venturi tube

• Determining the wind speed with a pressure head sensor

• Measuring the air resistance (drag) as a function of the wind speed

• Drag coefficient: Relationship between air resistance and body shape

• Plotting pressure curve on an airfoil profile

• Recording the airfoil profile polars in a wind tunnel

• Measuring students' own airfoils and panels in the wind tunnel

• Verifying the Bernoulli equation

• User Manual

• Lab Manual (detailing equipment setup and experimental procedures for each experiment)

Components

Wind Tunnel

• Open Circuit Type Wind Tunnel

• Total Length 3,600 mm

• 900 mm X 900mm Inlet section

• Honeycomb Flow Straightener

• Composite Fiberglass Construction

• AirSpeed O - 30 m/ s

• Test Section: 300 mm x 300 mm x 1,000 mm

• Axial Fan Drive with 3 HP Motor

• Control Panel

• Sturdy steel construction Support

• Cabinet for Tools

Instrumentation and Measurement System 

• Pilot Tube, 8 pipe Wake Rake

• PC Based Wind Tunnel DAQ (L, D, V, T, RPM)

• PC Notebook 14"LED, 2GB DDR3, 500GB HOD

• PC Based 32 channel Pressure Data Logger

• 2 x 50 N Load Sensor with mounting

• Lift & Drag Balance w/ Model Holder

• Digital Anemometer & Thermometer

• 36 Tubes Water Manometer

• 32 Channel Pressure Sensor

• Digital Manometer

Aerodynamics Models 

• Ball, Cylinder (L,D)

• Airfoil NACA 0012, NACA 6412 (L,D)

• Airfoil NACA 2412 with Flap (L,D)

• Airfoil NACA 6417 Pressure Distribution

Accessories 

• Venturi tube with multi-manoscope

• Small stand base

• Stand rod 25 cm, 47 cm

• Multiclamp

• Sector dynamometer

CBT Topic Coverage 

• Aerodynamic Forces of Weight, Lift, Drag, and Thrust

• Aircraft Control Surfaces

• Aircraft Stability

• Airfoil Theory

• Angle of Attack

• Atmospheric Properties of Temperature, Pressure, Humidity, and Density

• Bernoulli's Principle

• Helicopter Aerodynamics

• Laminar / Turbulent Airflow

• Types of Drag

• Viscosity

Requirements 

• Power Input 3 KW, 380 VAC, 3 Phase

• Dimensions L x W x H (mm): 4,600 x 1,675 x 1,675