# Friction Factor Calculation using Blasius Equation

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#### Friction Factor Calculation using Blasius Equation

The Blasius equation is a simple equation which predicts the value of the friction factor f for very smooth pipes. Corresponding to the bottom line of the Moody diagram for Re < 105.

# $f=0.3164Re0.25$

Where :

f : Friction coefficient

Re : Reynolds number (dimensionless)

Read more about other equations to calculate the friction factor f :

Swamee-Jain Equation

Barr's Equation

Moody Chart

Hagen-Poiseuille Equation

Colebrook-White Equation