Meaning of Couette flow

Cou•ette' flow"

Pronunciation: (k-et'), [key]
— Mech. Mech.
  1. the flow of a fluid between two surfaces that have tangential relative motion, as of a liquid between two coaxial cylinders that have different angular velocities.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.