Stokes Number Formula

Equation for calculate stokes number is,

$S t k = \frac{t_{0} \cdot u_{0}}{l_{0}}$

where,

t₀ is the relaxation time of the particle
u₀ is the fluid velocity of the flow well away from the obstacle
l₀ is the Characteristic dimension of the obstacle
Stk is the Stokes number

t₀ is the relaxation time of the particle

u₀ is the fluid velocity of the flow well away from the obstacle

l₀ is the Characteristic dimension of the obstacle

Stk is the Stokes number