Bernoulli principle

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Bernoulli principle

(Or "air foil principle", after Swiss mathematician Daniel Bernoulli, 1700-1782) The law that pressure in a fluid decreases with the rate of flow. It has been applied to a class of hard disk drives.

See Bernoulli Box.

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Bernoulli's principle

An increase in the velocity of a fluid that is accompanied by a decrease of pressure. Swiss scientist, Daniel Bernoulli (1700-1782), demonstrated that, in most cases, the pressure in a liquid or gas decreases as the liquid or gas moves faster. This explains in part why a wing lifts an airplane.

The Lift of a Wing

The curved top of a wing creates a longer distance from front to back than the straight bottom. This causes the air on top to travel farther, and thus faster, to reach the back than the air underneath, creating a difference in pressure between the two surfaces.

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The Bernoulli principle is based on the law of conservation of energy, which asserts that in any system energy can neither be created, nor destroyed; however, energy can be transformed.

Fluid dynamics

The amount of work a fluid foil can do depends upon its design (shape), its surface area, fluid density, and the velocity of the fluid (Bernoulli principle).

The fluid foil: the seventh simple machine: the fluid foil has had a major impact on the evolution of the global economy and on human society in the areas of transportation and energy and power technologies

Here we propose a novel way to manage project cash flow dynamics using the Bernoulli principle of fluid dynamics.

Decision support system for multi-project cash-flow management

The result was the VA Comp--so named because of its Venturi-port utilization of the Bernoulli Principle (a principle that explains why, for example, you can adjust the nozzle on your garden hose to send the same stream of water as a jet or a slow trickle without changing the pressure of your household pump).

Recoil management: A new compensator design promises to tame the savage beast. (Tech Corner)