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

\( F_d = \frac {1} {2}  \rho v^2  C_D    A \)          \( drag \; force  \;=\;  \frac {1} {2} \;  \left( \; densiry  \;\;x\;\;  velocity^2  \;\;x\;\; drag \; coefficient  \;\;x\;\;   transversal \; area \; \right)\)

\( F_d = \frac  { \rho v^2  C_D    A}  { 2 } \)          \( drag \; force  \;=\;  \frac { densiry  \;\;x\;\;  velocity^2  \;\;x\;\; drag \; coefficient  \;\;x\;\;   transversal \; area }  { 2 } \)

Where:

\(F_d\) = drag force

\(A\) = cross section perpendicular to area flow

\(C_d\) = drag coefficient

\(\rho\) = density

\(v\) = velocity

 

 

 

Tags: Equations for Force