Torque scaling between independently rotating cylinders in turbulent Taylor-Couette flow

ORAL

Abstract

The Twente Turbulent Taylor-Couette (T$^{3}$C) system allows for a 20 Hz rotation rate of the inner cylinder and 10 Hz rotation rate of the outer cylinder. The corresponding maximum Reynolds numbers for the inner and outer cylinder are Re$_{i}$ = 2.0 x 10$^{6}$, and Re$_{o}$ = 1.4 x 10$^{6}$, respectively. The system has a radius ratio of 0.716 and an aspect ratio of 11.68, and the end plates are attached to the outer cylinder. We measured the global torque (G) as a function of the inner and outer cylinder Reynolds numbers in the unexplored parameter space of co- and counter-rotation.

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Authors

  • Dennis van Gils

    University of Twente

  • Daniela Narezo

    University of Twente

  • Sander Huisman

    University of Twente

  • Chao Sun

    The University of Twente, University of Twente, Physics of Fluids group, University of Twente, University of Twente, The Netherlands, Physics of Fluids Group, University of Twente

  • Detlef Lohse

    The University of Twente, University of Twente, Physics of Fluids group, University of Twente, Physics of Fluids, Twente University, The Netherlands, University of Twente, The Netherlands, Physics of Fluids, University of Twente, Physics of Fluids Group, University of Twente