| LOW TURBULENCE WIND TUNNEL TMT CHARACTERISTICS |
| Type of Wind Tunnel |
open circuit, closed test section |
| First section parameters |
| test section |
0.5 m x 0.65 m rectangular with cut corners
(0.125 m x 0.125 m) |
| test section length |
1.3 m |
| speed |
1 ÷ 85 m/s |
| Second test section parameters |
| test section size |
1.75 m x 2.28 m rectangular with cut corners
(0.125 m x 0.125 m) |
| test section length |
2.4 m |
| speed |
up to 8 m/s |
| Max Reynolds number, per meter |
1.6 x 106 |
| Number of grids |
up to 5 |
| Contraction ratio |
12.28 |
| Engine power |
| first for speed up to 40 m/s |
5.1 kW |
| second for speed greater then 40 m/s |
64 kW |
| Test gas |
air |
| Run time |
continuous |
| Aeroplane model size |
| wing span |
0.50 m |
| wing chord |
up to 0.30 m |
| Model incidence angle |
| for wing chord 0.22 m |
0 to ±20 degrees |
| for wing chord 0.30 m |
0 to ±10 degrees |
| Airflow properties in the test section |
| Turbulence intensity measured by anemometer |
| without grids |
τ = 0.10% |
| with 5 grids |
τ = 0.03 |
