According to Bernoulli's Principle, what happens to pressure as the velocity of a fluid increases?

According to Bernoulli's Principle, as the velocity of a fluid increases, the pressure within that fluid decreases. This principle is a fundamental concept in fluid dynamics, illustrating that within a streamlined flow, an increase in the speed of the fluid leads to a reduction in pressure.

This relationship is a result of the conservation of energy within the fluid's flow. The total mechanical energy of the fluid remains constant when disregarded in terms of friction or other losses, which means that as kinetic energy (related to velocity) increases, the potential energy (represented by pressure) must decrease to maintain that balance.

Understanding this principle is vital in aviation, particularly in the context of airflow over wings. When airflow speeds up over the top surface of a wing, it creates a lower pressure area compared to the higher pressure underneath the wing, resulting in lift.