Maurice Couette

Maurice Marie Alfred Couette (9 January 1858, Tours – 18 August 1943, Angers) was a French physicist known for his studies of fluidity.

Couette is best known for his contributions to rheology and the theory of fluid flow. He designed a concentric cylinder viscometer that he used to accurately measure the viscosity of fluids. The laminar flow observed in the gap between the two cylinders is known as Couette flow. He studied the boundary conditions of a fluid and showed that the "no slip" condition was satisfied for the fluids and wall materials tested.