Early wind tunnels used them with no screens; unfortunately, this method introduced high turbulence intensity in the test section.
Unfortunately, this method introduced high turbulence intensity in the test section. Early wind tunnels used them with no screens.
Early wind tunnels used them with no screens. Unfortunately, this method introduced high turbulence intensity in the test section.
Early wind tunnels used them with no screens. Unfortunately, this method introduced high turbulence intensity in the test section.