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.

A small wind turbine can be surprisingly affordable — as long as you don't have to mount it on a tall tower to catch the wind ...

The main purpose of the measurement over the small scaled prototype vertical axis wind turbine for the wind velocity is to predict the performance of full scaled H-type vertical axis wind turbine.