How it works thumb|A wind tunnel diagram which shows a fan drawing air past a model aircraft.https://ntrs.nasa.gov/citations/19810023610, Wind Tunnels of NASA SP-440,p.2 The measurements taken from models are applicable to full-size objects. thumb|The effect of streamlining is made visible in a wind tunnel. Shaping the body to make it more streamlined reduces fuel consumption. A wind tunnel creates an outdoor environment in a controlled indoor setting which enables measurements of wind forces on a moving object to be taken while the object is stationary. This is much cheaper and more convenient than getting measurements while the object is moving.
How it works thumb|A wind tunnel diagram which shows a fan drawing air past a model aircraft.https://ntrs.nasa.gov/citations/19810023610, Wind Tunnels of NASA SP-440,p.2 The measurements taken from models are applicable to full-size objects. thumb|The effect of streamlining is made visible in a wind tunnel. Shaping the body to make it more streamlined reduces fuel consumption. A wind tunnel creates an outdoor environment in a controlled indoor setting which enables measurements of wind forces on a moving object to be taken while the object is stationary. This is much cheaper and more convenient than getting measurements while the object is moving.