Drag coefficient

Input(s)

$\rho$: Mass Density of the Fluid $\left(\mathrm{kg} / \mathrm{m}^{3}\right)$

$\mathrm{u}$: Flow Speed of the Object Relative to the Fluid $(\mathrm{m} / \mathrm{s})$

$\boldsymbol{F}_{\boldsymbol{d}}$: Drag Force $(\mathrm{N})$

A: Cross Sectional Area $\left(\mathrm{m}^{2}\right)$

Output(s)

$\boldsymbol{c}_{\boldsymbol{d}}$: Drag Coefficient (dimensionless)

Formula(s)

$$ \mathrm{c}_{\mathrm{d}}=\frac{2 * \mathrm{~F}_{\mathrm{d}}}{\rho * \mathrm{u}^{2} * \mathrm{~A}} $$

Reference(s)

Wikipedia.org.