Bernoulli’s Principle

In fluid dynamics, Bernoulli’s Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid’s potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamics in 1738. Bernoulli’s principle can be applied to various types of fluid flow, resulting in various forms of Bernoulli’s equation; there are different forms of Bernoulli’s equation for different types of flow. The simple form of Bernoulli’s equation is valid for incompressible flows (e.g. most liquid flows and gases moving at low Mach number). More advanced forms may be applied to compressible flows at higher Mach numbers (see the derivations of the Bernoulli equation). (Source: Wikipedia)