Enter the volumetric flow rate through the intake and the intake area into the calculator to determine the intake velocity.

Intake Velocity Formula

The following equation is used to calculate the Intake Velocity.

  • Where IV is the intake velocity (m/s)
  • IFR is the intake flow rate (m^3/s)
  • IA is the intake cross-sectional area (m^2)

To calculate the intake velocity, divide the intake flow rate by the intake cross-sectional area.

What is an Intake Velocity?


A intake velocity is a measure of the speed at which air moves through an intake.

How to Calculate Intake Velocity?

Example Problem:

The following example outlines the steps and information needed to calculate Intake Velocity.

First, determine the intake flow rate. In this example, the intake flow rate is found to be 20 m^3/s.

Next, determine the intake cross-sectional area. For this problem, the intake cross-sectional area is found to be 10 m^2.

Finally, calculate the Intake Velocity using the formula above:


IV = 20 / 10

IV = 2 m/s