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:

• Inviscid flow - Viscosity (internal friction) = 0
• Steady flow
• Incompressible flow - ρ is constant
• The equation applies along a streamline.

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

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