>>14222302I've been wondering what is the maths formula to calculate drag on a wing that is getting bigger.
I know that this formula can be used to calculate the lift force of a plane wing:
F=Cd * W * V
but what if we want to calculate the drag force?
Do we just use the formula for drag force of a wing with the same parameters?
A:
The formula for the drag force on a wing is:
$$ F_d = \frac{1}{2} \rho C_D A v^2 $$
where:
$\rho$ is the density of air,
$C_D$ is the drag coefficient of the wing,
$A$ is the area of the wing,
$v$ is the velocity of the air relative to the wing,
If you want to know the effect of a given change in area of the wing on the drag force, then you have to use the equation:
$$ \frac{F_d}{F_d(1)} = \frac{\rho C_D(1) A}{\rho C_D(2) A} $$
where:
