स्टोक्स अवसादन कैलकुलेटर — सूत्र

Stokes Settling (Low Reynolds Number)

Very small particles settle through a fluid at a terminal velocity governed by Stokes' law.

Formula

v_s = 2 (rho_p - rho_f) g r^2 / (9 mu)

*rho_p* = particle density

*rho_f* = fluid density

*r* = particle radius

*mu* = dynamic viscosity

This applies when Re < 1 (creeping flow regime). Larger particles settle faster because velocity scales as r^2.