Metrology: Precision Wind Tunnel System

What is it?
Wind tunnels are machines with a large tube that air blows through them. They are designed for specific purposes. For example, Aerodynamicists use wind tunnels to model the aircraft and even spacecraft.

Manufacturer: Westenberg Engineering

Model Name: WK825540-G

Applications: The Wind Tunnel system is used to calibrate NMC's customers' anemometers. Application of Anemometers: -Measure the airspeed in aerodynamics. -Calculate the wind speed in skydiving. -Calculate of wind speed for pilots the wind speed in skydiving. -Calculate of wind speed for drone. -Use to measure the wind direction. -Use to measure the pressure and flow of wind. -Use in world weather stations. - Measure air flow in aircon systems in buildings

Instrument Overview: Wind tunnel 825540-G is a closed return wind tunnel which is also called a Gottingen tunnel named after the research laboratory in Germany where the tunnel was used for the first time. Although, there are numerous advantages for Eiffel (open return) tunnels as mentioned in Wind Tunnel 825535-E; closed return wind tunnels have many other advantages and most of the large research wind tunnels in NASA are closed return (Gottingen) tunnels. One of the most noticeable advantages of Westenberg’s Wind tunnel 825540-G, as a Gottingen tunnel is that when the air starts circulating in the tunnel; the motor and the fan overcome losses through the turning vanes and along the wall.

Technical features and specifications:
Length of working section: 320 mm Diameter of jet outlet: 255 mm Flow velocity: 0.2 m/s to 60 m/s Contraction ratio: 4 Fan connection: 3 x 400 Volt / 50 Hz Turbulence ratio by 20 m/s: 0.3 to 0.5 % Dimensions (Width x Height x Length): 840 x 2.300 x 4.006 mm + (400 mm for control unit) Motor output: 300 kW

Charges:
635

Instrument Manufacturer URL: http://www.westenberg-engineering.de/en/wind-tunnels/wind-tunnels/goettingen-type-wind-tunnels/

Detailed Specifications:
https://felixtrument.ca/product/wind-tunnel-825540g/