Drag Force

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Drag Forceforce drag

Drag force ( \(F_d\) ) or drag for any body moving through a fluid (gas or liquid), is the force exerted perpendicular and in opposition to the direction of travel.

Drag Force Formula

\(\large{ F_d = \frac {1} {2}  \rho v^2  C_D    A  }\)         

\(\large{ F_d = \frac  { \rho v^2  C_D    A}  { 2 }  }\)         

Where:

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

\(\large{ A }\) = cross section perpendicular to area flow

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

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

\(\large{ v }\) = velocity

 

Tags: Equations for Force