the standard description of the Lift force affecting the lift surface is:
$$ F={\dfrac{1}{2}}\rho v^{2} SC_{L} $$ the basic rearrangement gives the following definition of the lift coefficient: $$ C_{L}={\dfrac{2F}{\rho v^{2}S}} $$
why is the above expression met so rarely? with the standard skipping the 2 multiplier? $$ C_{L}={\dfrac{F}{\rho v^{2}S}} $$
I've checked 30 scientific papers, those measuring the lift\drag coefficients.
- 28 papers have had F
- 2 papers have had 2F
2
factor $\endgroup$