Couette flow

noun Mechanics.
  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.

Origin of Couette flow

< French couette, literally, feather bed (in machinery, a bearing). See quilt Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018