Volumetric Flow Rate

The volumetric flow rate (V) of a system is a measure of the volume of fluid passing a point in the system per unit time. The volumetric flow rate can be computed as the product of the cross-sectional area (A) for flow and the average flow velocity (v).

V = Av

When area is measured in square feet and velocity in feet per second, the above equation outcome in volumetric flow rate measured in cubic feet per second. The other general units for volumetric flow rate involve cubic centimeters per second, gallons per minute, liters per minute, and gallons per hour.