Wind Tunnel Sections

• Construction – Computer formed sections fabricated from noise reducing 14 gauge steel. Frame of heavy duty standard steel shapes.
• Fasteners – All fasteners are Aircraft Mil Specification quality.
• Overall Length of Unit – 74" front to back
• Entrance Cone – Contraction Ratio Twelve to one
• Inlet – Square; 18" x 18"
• Shape design – Provides continuously increasing velocity from entrance to test section while reducing adverse gradients, boundary layer and, wall separation.

Flow Straightener

• Material – Plastic honeycomb
• L/D Ratio – Ten to one; 2-1/2" length with  -inc-inch diameter.

Test Section

• L/W/H – 18" x 5" x 5"
• Velocity – maximum 55 mph (80 fps, 25 m/s)
• Clear field of view – Yes; Plexiglas top and side walls allow almost total field of view for observation of test in progress.

Fan

• Size – Ten (10)"
• Description – Composite blade (pitch adjustable with fan removed)

Power Electrics

• Standards – All components meet or exceed UL, NEMA, and IEC specifications
• Motor – Variable speed, 1/8 hp AC motor and electronic speed controller.

Instrumentation

• Manometers – One, Sixteen (16) tube water manometer
• Venturi Section Insert – One (1) shape venturi section insert for continuity experiment.

Documentation

• Operating Manual – One (1) standard unit operating and service manual.
• Venturi Experiment – One (1) experiment lesson plan for both shapes.