A form of local energy conservation for an ideal fluid, it explains the Venturi effect and some aspects of flight.
Dividing this equation through by the acceleration of gravity gives you the head equation. This law can be derived by integrating the inviscid Newtonian Navier-Stokes equation along a streamline. It gains a term of the specific internal energy if the flow is compressible. A form of local energy conservation for an ideal fluid, it explains the Venturi effect and some aspects of flight. FTP, name this principle, usually stated as v-squared over two plus p over rho plus g z is constant; a principle of fluid mechanics named for a Swiss mathematician.
Dividing this equation through by the acceleration of gravity gives you the head equation.
Bernoulli's principle (or Bernoulli's equation; accept similar phrases involving Bernoulli)