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Bernoulli's equation

In fluid dynamics, Bernoulli's Equation describes the behavior of moving fluids along a streamline.

v = fluid velocity along the streamline
g = gravitational constant
y = elevation in g-field
P = pressure along the streamline
ρ = fluid density

These assumptions must be met for the equation to apply:

The equation can be derived by integrating the Euler equations along a streamline.