High Tunnel Air Velocities = High Static Pressures

vol22n8.png
Date: 
2010
Volume: 
22
Number: 
8
Tip Category: 
Air speed
Exhaust fans
Tunnel ventilation

In the early 1700's Daniel Bernoulli studied the relationship between pressure and velocity for a moving fluid. One of the basic laws of physics he uncovered was that pressure increased with the square of velocity. More simply put, if you double the velocity of a fluid, the pressure/work required to move a fluid through pipe or fitting increases four fold. Though you may not realize it, Bernoulli’s discovery nearly 300 years ago has a significant impact on our ability to keep birds cool during hot weather.