# Lift Coefficient

Written by Jerry Ratzlaff. Posted in Dimensionless Numbers

Lift coefficient is a dimensionless number, the lift generated by a lifting body to the fluid density around the body.

## formula

$$C_L = \frac {L} { \frac {1}{2} \rho v^2 A} = \frac {2L} { \rho v^2 A} = \frac {L} { Q A}$$

Where:

$$C_L$$ = lift coefficient

$$L$$ = lift force

$$v$$ = velocity

$$\rho$$ = fluid density

$$A$$ = area

$$Q$$ = dynamic pressure