Bernoulli's principle

(redirected from Bernoulli's equation)
Also found in: Medical, Encyclopedia.

Bernoulli's principle

or

Bernoulli's law

n
(General Physics) physics the principle that in a liquid flowing through a pipe the pressure difference that accelerates the flow when the bore changes is equal to the product of half the density times the change of the square of the speed, provided friction is negligible
[C19: named after Daniel Bernoulli]
References in periodicals archive ?
INVESTIGATION OF THE EFFECTS OF AN EXIT PIPE ON THE CALCULATION OF DRAINAGE TIME OF WATER FROM A TANK USING BERNOULLI'S EQUATION.
Bernoulli's equation is the integral of the Euler's equation and applies to general initial and final velocities and pressure.
Each section's resistance was then modeled by applying Bernoulli's equation or Forchheimer-extended Darcy's Law.
This principle defines the conservation of momentum, which leads to Bernoulli's equation when viscous forces are neglected, steady flow and constant density are assumed.
Solutions were obtained using (1) a three-dimensional solution of the Navier-Stokes equation using computational fluid dynamics and (2) Bernoulli's equation and a momentum balance in one dimension.
It is governed by the simple gravity form of Bernoulli's equation of energy,
The authors said current runner systems are troublesome because gating design calculations make intensive use of Bernoulli's equation and the law of continuity.