For 10 points, name this principle of fluid dynamics that states that the velocity of a flow increases as the pressure or potential energy of the fluid decreases, named for a Dutch-Swiss mathematician.
Luke's variational principle incorporates this statement in regards to unsteady potential dynamics. In aerodynamics, this statement can be used to find the pressure difference when applied to the Kutta-Joukowski theorem, which relates the lift provided by a cylinder to the speed and circulation of the cylinder. A combination of this statement and the equation of continuity can describe the pressure difference in a (*) Venturi tube. This statement can be simplified to express that total pressure is the sum of static and dynamic pressures, in cases where the differences in height between two states of a streamline is minimized. For 10 points, name this principle of fluid dynamics that states that the velocity of a flow increases as the pressure or potential energy of the fluid decreases, named for a Dutch-Swiss mathematician.
Luke's variational principle incorporates this statement in regards to unsteady potential dynamics.
Bernoulli's principle or equation