抄録
When we make a wind tunnel, we should be careful that the velocity distribution is uniform, and that the turbulence intensity is both low and uniform. In order to fill these conditions, we use commutating wire and nozzles. This research specially examines the characteristics and efficiency on the turbulence reduction of these devices of four different nozzle types (i. e. Rouse-Hassan, cosine curve, Bachelor-Shaw and straight).
