Darcy Friction Factor Calculator

The Darcy friction factor is crucial in fluid dynamics, as it quantifies the resistance or friction in a pipe. It is used in the Darcy-Weisbach equation for determining pressure drops in a pipe due to frictional forces.

Darcy Friction Factor Formula

1. For laminar flow (Re < 2000):
   \[ f = \frac{64}{Re} \]
2. For turbulent flow (Re > 4000):
   The Colebrook-White equation is applied:
   \[ \frac{1}{\sqrt{f}} = -2 \log_{10} \left(\frac{\epsilon/D}{3.7} + \frac{2.51}{Re \cdot \sqrt{f}}\right) \]

This calculator is particularly useful in civil, chemical, and mechanical engineering fields for designing efficient piping systems.