The energy of a fluid which is in motion. Also the potential energy needed in order to create fluid velocity.

The energy required to attain a certain velocity. The higher the velocity the greater the velocity head. Velocity head is usually insignificant in most landscape irrigation applications, but should be calculated where low pressure and high velocities occur.

For water moving at a given velocity, the equivalent head through which it would have to fall by gravity to acquire the same velocity.

The equivalent distance a liquid must fall to attain a given velocity. The amount of energy, expressed in feet of head, required to accelerate the liquid to a given velocity.

Part of the total head calculation. Derived from the formula h = V2/2g

Energy contained by fluid because of its velocity; usually expressed in feet of fluid (foot-pounds per pound).

The kinetic energy of flow per unit weight of flowing liquid. ( = 2/2, where is the flow velocity and is the acceleration of gravity.)

The energy per unit weight of water due to its velocity. It is also the vertical distance the fluid must fall freely under gravity to reach its velocity.

The amount of energy required to accelerate water to a given velocity; expressed in feet per head.

The energy required to put water in motion.