Low noise wind tunnel


Wind tunnels are devices for conducting fluid experiments in artificially generated winds. The low noise wind tunnel is designed in various ways so that fluid experiments can be performed while keeping the measurement unit in a quiet environment.

High performance Enables low noise and low turbulence airflow performance
Multifunctional We have two measurement units and can handle various tests
Energy saving type It is energy recovery method by circulation type air course
Space saving type Optimal design and miniaturization of each part of the wind tunnel


SizeB 2m × H 2m × L 5mB 3.2m × H 3.5m × L 7m
FormatOpen typeSealed method
Maximum wind speed60 m/s30m/s(When using flow path blocks)
Wind speed distribution±1%以下(40m/s時)±5%以下(30m/s時)


②.Sound absorption concrete

The inner wall of the air passage is covered with porous concrete panel. The sound waves are attenuated in the small holes and the noise is reduced.

③.Guide vane

In addition to reducing pressure loss at the corners, it also has a rectifying effect.

④.Rectification unit

It consists of a honeycomb and a plurality of rectifying nets. The speed of the wind is equalized and the degree of turbulence is also reduced.

⑤.First measurement unit

All walls, ceilings and floors are covered with wedge-shaped sound absorbing material.


It absorbs sound while passing through the wind.

⑦.Guide vane with sound absorbing material

⑧.Second measurement unit

Experiments with large aircraft models are conducted here.

⑨.Measurement room