# Water Velocity Through Piping

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

## formula

$$v_w = \frac { Q_w } { 3600 \pi { \left( \frac {d}{2} \right) ^2 } }$$

Where:

$$v_w$$ = velocity of water through piping

$$Q_w$$ = flow rate of water through piping

$$\pi$$ = Pi

$$d$$ = pipe inner diameter