Darcy-Weisbach Equation (Fluid Mechanics) Formula
Relates the pressure loss due to friction along a pipe to the average velocity of the fluid flow.
Formula
Δp = f × (L/D) × (ρv²/2)
Discipline: Fluid Mechanics. Result unit: Pa.
Variables and units
- Δp — Pressure Loss (Pa): Pressure loss
- f — Friction Factor: Darcy friction factor
- L — Length (m): Pipe length
- ρ — Density (kg/m³): Fluid density
- v — Velocity (m/s): Flow velocity
- D — Diameter (m): Pipe diameter