Fluid Mechanics
Advanced

Bernoulli's Equation

Energy conservation along a streamline.

Formula

P+12ρv2+ρgh=constP + \tfrac{1}{2}\rho v^2 + \rho g h = \text{const}

Variables

PPressure
\rhoDensity
vSpeed
hHeight

Did You Know?

Bernoulli's principle helps explain lift: faster air over a wing's top exerts less pressure than the slower air below.

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