The factor of proportionality in the previous equations is called theĀ Moody friction factor and is determined from the Moody resistance diagram shown in Figure…

This equation, which is also sometimes called the Weisbach equation or the Darcy-Weisbach equation, states that the friction head loss between two points in a…

The Reynolds number is a dimensionless parameter that relates the ratio of inertial forces to viscous forces. It can be expressed by the following general…