Drag Coefficient

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Drag coefficient ( \(C_d\) ) (dimensionless number) expresses a force in the direction of flow due to pressure and surface stress on an object.

Drag Coefficient FORMULA

\(\large{ C_d =  \frac {2F_D} {\rho v^2 A} }\)         

Where:

\(\large{ C_d }\) = drag coefficient

\(\large{ A }\) = area

\(\large{ F_d }\) = drag force

\(\large{ \rho }\)  (Greek symbol rho) = mass density

\(\large{ v }\) = velocity

 

Tags: Equations for Coefficient