Description

• Type: Closed-return, atmospheric-type wind tunnel
• Refrigerated for all-year operation

Test Chamber Dimensions

• Height: 1.8 m (6 ft.)
• Width: 2.7 m (9 ft.)
• Length: 6.1 m (20 ft.)

Tunnel Accessibility

• Model delivery access door - (10.5 ft. w by 10.67 ft. high)
• Balance chamber access door - (9.08 ft. w by 8.25 ft. high)
• Diffuser access hatch - (8 ft. high by 10 ft. wide)
• Personnel access door - (4.5 ft. wide by 5.25 ft. high)

Performance and Capability

• Continuous air speeds from 50 to 350 knots
• Mach number variation ±0.005 Mach
• Year-round temperature as low as -25°F, controllable to +/-1°F
• Supercooled water droplets between 15 and 50 microns
• Water content controllable between 0.2 and 2.5 g/m³ can be produced to form an icing cloud 6 ft by 5 ft
• 8.67 ft. diameter turntable can be rotated ±20 degrees

General Support Service Systems

• Heated air
• 150-psig at flows up to 5-lb/sec to temps up to 500°F
• 125-psig at flows up to 0.1 lb/s to temps up to 700°F
• Steam service at 40-psig
• Service or shop air at 125-psig
• Altitude exhaust - 26-in Hg at flows calibrated from 0.1 to 85-lbm/sec
• Force balance system
• Facility data recording equipment

Instrumentation

• Facility instrumentation data are displayed on WDPF pages
• Temperature measurements - oven inputs can handle type K-, T-, J-, or E-,thermocouples
• Pressure measurements
• Facility - Escort D data systems
• Model - 186 channel ESP data system

Imaging Technology

• Video and still imaging cameras
• High-speed photography
• Digital cameras
• Standard flow visualization techniques
• Laser sheet flow visualization
• Infrared thermography system

Data Processing

• Real time acquisition supported with Escort D data system
• 192 channels available for real time displays
• Electronically scanned pressure (ESP) system
• Scan rate of 10,000 ports/sec
• Three point calibration every 15 minutes
• Single and multi-cyclic scanning from one Record button
• Standard (CRT) output and Nonstandard (custom data plots, calculations or specific data) outputs available
• Facility workstations include a Silicon Graphics Model 4D Indigo system running IRIX 5.2 System V