vökvafasla
Vökvafasla refers to the velocity of a fluid—how fast and in what direction liquid moves at a given point and time. In physics and engineering it is described by a velocity field v(x,t), where each position x and time t is assigned a vector indicating speed and direction. The magnitude |v| is the speed, and the vector points along the instantaneous flow direction.
If density is constant, the flow is incompressible and the velocity field must satisfy the continuity equation
Volumetric flow rate, Q, is the amount of fluid passing through a cross-section per unit time and
Measuring vökvafasla employs tools such as pitot tubes, anemometers, laser Doppler velocimetry, and particle image velocimetry
Etymology: vökvi means liquid; fasla denotes flow or movement.