Scaling of torque in turbulent Taylor-Couette flow with background rotation

Rene Delfos (1) , Florent Ravelet (1, 2) , Jerry Westerweel (1)

1 AHD - Laboratory for Aero and Hydrodynamics
2 LEMFI - Laboratoire d'énergétique et de mécanique des fluides interne

We experimentally study the turbulent flow between two coaxial and independently rotating cylinders. We study the torque scaling with Reynolds numbers at various rotation rates (Rotation numbers), and the behaviour of the wall shear stress when varying the rotation number at high Reynolds numbers. We compare the curves with PIV analysis of the mean flow and show the peculiar role of perfect counterrotation for the emergence of organised large scale structures in the mean part of this very turbulent flow.

Mots clés: turbulent Taylor-Couette flow

Domaines: Dynamique des Fluides [physics.flu-dyn]

Rene Delfos, Florent Ravelet, Jerry Westerweel. Scaling of torque in turbulent Taylor-Couette flow with background rotation. 12th EUROMECH European Turbulence Conference, Sep 2009, Marburg, Germany. pp.629. ⟨hal-00375857⟩