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 formulas

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

Where:

 Units English Metric
\(\large{ L }\) = lift force \(\large{ lbf }\) \(\large{N}\) 
\(\large{ A }\) = area \(\large{ ft^2 }\) \(\large{ m^2 }\)
\(\large{ \rho }\)  (Greek symbol rho) = density  \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\) 
\(\large{ C_l }\) = lift coefficient \(\large{ dimensionless }\)
\(\large{ v }\) = velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)

 

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Tags: Liquid Equations Force Equations