Pipe Velocity Calculator — Formula
## Pipe Flow Velocity
Velocity is derived from the continuity equation by dividing flow rate by cross-sectional area.
### Formula
**V = Q / A = 4 Q / (pi D^2)**
where Q is the volumetric flow rate and D is the pipe inner diameter. Maintaining velocities within recommended ranges (1-3 m/s for water) avoids excessive pressure loss and erosion.
Velocity is derived from the continuity equation by dividing flow rate by cross-sectional area.
### Formula
**V = Q / A = 4 Q / (pi D^2)**
where Q is the volumetric flow rate and D is the pipe inner diameter. Maintaining velocities within recommended ranges (1-3 m/s for water) avoids excessive pressure loss and erosion.
Exemplo Resolvido
15 L/s flowing through a 100 mm diameter pipe.
- Q = 15 L/s = 0.015 m^3/s
- A = pi x 0.1^2 / 4 = 0.007854 m^2
- V = 0.015 / 0.007854 = 1.91 m/s