Experimental study of the boundary layer properties in ultimate Taylor-Couette flow

ORAL

Abstract

We report high-resolution measurements of the properties of the velocity boundary layer in turbulent Taylor-Couette flow using time-resolved particle image velocimetry (PIV). The experiments are performed in the Twente Turbulent Taylor-Couette facility (T3C). The Taylor number is varied from 10$^8$ to 10$^{13}$, which covers the ultimate turbulence regime and the transition regime. We also change the rotation ratio of the inner and outer cylinders. The boundary layer profile, thickness, and scaling behavior are experimentally examined. In addition, the measured results are closely compared to the boundary layer properties in turbulent Rayleigh-B\'enard flow.

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Authors

  • Sander Huisman

    Physics of Fluids group, University of Twente, Netherlands

  • Roeland van der Veen

    Physics of Fluids group, University of Twente, Netherlands

  • Chao Sun

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

  • Detlef Lohse

    University of Twente, Physics of Fluids, University of Twente, Enschede, Physics of Fluids, University of Twente, Physics of Fluids group, University of Twente, Netherlands, Universiteit Twente, University of Twente, Physics of Fluids Group, University of Twente, Enschede, The Netherlands, Physics of Fluids Group, Faculty of Science and Technology, J.M. Burgers Center for Fluid Dynamics, and IMPACT Institute, University of Twente, NL, Physics of Fluids Group, University of Twente, The Netherlands