Stokes' law
Equation for the velocity of a body in viscous fluid / From Wikipedia, the free encyclopedia
This article is about the expression for frictional force. For the acoustics theorem, see Stokes's law of sound attenuation.
Not to be confused with Stokes' theorem in vector calculus, or Stokes shift in luminescence and Raman spectroscopy.
In fluid dynamics, Stokes' law is an empirical law for the frictional force – also called drag force – exerted on spherical objects with very small Reynolds numbers in a viscous fluid.[1] It was derived by George Gabriel Stokes in 1851 by solving the Stokes flow limit for small Reynolds numbers of the Navier–Stokes equations.[2]