Turbulent flow between concentric rotating cylinders at large
Daniel P. Lathrop, Jay Fineberg,
and Harry L. Swinney
Center for Nonlinear Dynamics and
Department of Physics, University of Texas, Austin,
Received 13 September 1991
vortex flow is studied in experiments for Reynolds numbers 103<R<106.
Simple scaling of the torque with Reynolds number is m/Inot
observed for any range of R, although the characteristic time scales and
the transport of passive scalars are found to scale with the global torque
measurements. Above a nonhysteretic transition
observed at R=1.3×104, the torque has a Reynolds number
dependence similar to the drag observed in wall-bounded shear flows such as
pipe flow and flow over a flat plate.