Stokes flow is a type of flow where inertial forces are small as compared to viscous forces. The Reynolds number is low, usually Re<1. This is a typical situation in MEMS devices.

For this type of flow, the Navier-Stokes equations simplify as:

$0\; =\; \backslash nabla\; \backslash mathbb\{P\}\; +\; \backslash rho\backslash mathbf\{f\}$

Stokes flow is very common in the processing of polymers and other materials.

Fluid dynamics