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