The small wind tunnel with a 16-by-16 inch test section is a low speed, open return tunnel, as shown in Figure 1. It is mainly used for airfoil section tests and teaching. he velocity is up to 50 m/s.

It also turns out that the proposed construction method causes less deformation, and the method can be applied to the construction of the small interval tunnel in the Santunbei turn line of metro. The ...

This is a closed-circuit, closed test section wind tunnel with a rectangular test section that is 711 mm wide and 507 mm high at the entry. The test section is 2285 mm long and the side walls have a ...

What is a footprint tunnel? A footprint tunnel is a small structure you place outdoors that records the tracks of small animals, using animal-friendly ink and a small amount of bait. By working out ...