Lewis number

Input(s)

$\alpha$: Thermal Diffusivity $\left(\mathbf{m}^{2} / \mathrm{s}\right)$

D: Mass diffusivity $\left(\mathbf{m}^{2} / \mathrm{s}\right)$

Output(s)

Le: Lewis number (dimensionless)

Formula(s)

$$ \mathrm{Le}=\frac{\alpha}{\mathrm{D}} $$

Reference(s)

Wikipedia.org.