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Glossary · Friction & flow regimes
Darcy – Weisbach Equation
Fundamental formula used for calculating pressure loss due to friction in pipe flow.
The equation is expressed as:
ΔP = f × (L/D) × (ρV²/2)Where:
| ΔP | Pressure Drop |
| f | Moody Friction factor |
| L | Pipe length |
| D | Pipe diameter |
| ρ | Fluid density |
| V | Fluid velocity |
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