quick overview :
Description
Air passes into the wind tunnel through a honeycomb flow straightener and a grille. It then passes into an aerodynamically designed eff user (cone) that accelerates the air in a linear manner before it moves through the working section. Finally, it passes through a diff user, then into the variable speed axial fan. The grille protects the fan from damage by loose objects. The air leaves the fan, passes through a silencer unit and then back out to atmosphere. The speed of the axial fan (and therefore the air velocity in the working section) is controlled by an electronic drive control in the separate On/Off unit mounted on the tunnel’s associated instrument frame along with other ancillaries. Working Section The working section is of a square section with an acrylic roof and floor. The sides are full length acrylic panels and can be removed. The whole unit is supported in an aluminium framework. Each side panel has a holder to support wind tunnel models. On the top of the working section are two Pitot devices and a wall tapping to measure the static pressure upstream and downstream of the working section.
Features
A cost effective solution when compared to full-scale wind tunnels or airborne laboratories
Operates at meaningful Reynolds numbers
Safe, open-circuit suction design
Package includes an aerofoil with tapping a three-component balance, angle feedback, dual differential pressure display, a 32-way pressure display unit, 2 x Pitot static traverse, protractor, model holder and data acquisition (VDAS-F)
High levels of safety
Controls and instrumentation conveniently mount on a separate, free-standing frame
Specifications
ATICO is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specifi cation without prior notice.
Nett dimensions and weight (assembled): 6590 mm x 1430 mm x 2060 mm height; 900 kg space needed
Solid, level floor - allow at least 2 m of free space around the inlet and 4 m at the outlet.
Working section: 450 mm x 450 mm
Recommended Minimum Room Size 13 m x 5 m
Air velocity: 0 to 35 m.s–1
Electrical supply (three phase): 380 VAC to 440 VAC 50 Hz/60 Hz 10 kW
Operating Conditions
Environment: Laboratory
Storage temperature range: –25°C to +55°C (when packed for transport)
Operating temperature range: +5°C to +40°C
Operating relative humidity range: 80% at temperatures < 31°C decreasing linearly to 50% at
40°C
Product
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