Lift Force

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

force liftLift force, abbreviated as L, for an body moving through a fluid (gas or liquid) or air, is the force exerted perpendicular to the direction of travel.

Lift Force formula

(Eq. 1)  \(\large{ L = \frac{1}{2} \; C_l \; \rho \; v^2 \; A }\)         

(Eq. 2)  \(\large{ L = \frac{ C_l \; \rho \; v^2 \; A }{ 2 } }\)         

Where:

\(\large{ L }\) = lift force

\(\large{ A }\) = area

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

\(\large{ C_l }\) = lift coefficient

\(\large{ v }\) = velocity

Solve for:

\(\large{ A = \frac{2 \; L}{ C_l \; \rho \; v^2}   }\)

\(\large{ \rho = \frac{2 \; L}{ C_l \; v^2 \; A} }\)

\(\large{ C_l = \frac{2 \; L}{\rho \; v^2 \; A} }\)

\(\large{ v =   \sqrt { \frac{2 \; L}{ C_l \; \rho \; A}   }   }\)

 

Tags: Equations for Liquid Equations for Force