Exploring the phase space of multiple states in highly turbulent Taylor-Couette flow

Roeland C. A. van der Veen, Sander G. Huisman, On-Yu Dung (董安儒), Ho L. Tang, Chao Sun, and Detlef Lohse
Phys. Rev. Fluids 1, 024401 – Published 3 June 2016

Abstract

We investigate the existence of multiple turbulent states in highly turbulent Taylor-Couette flow in the range of Ta=1011 to 9×1012 by measuring the global torques and the local velocities while probing the phase space spanned by the rotation rates of the inner and outer cylinders. The multiple states are found to be very robust and are expected to persist beyond Ta=1013. The rotation ratio is the parameter that most strongly controls the transitions between the flow states; the transitional values only weakly depend on the Taylor number. However, complex paths in the phase space are necessary to unlock the full region of multiple states. By mapping the flow structures for various rotation ratios in a Taylor-Couette setup with an equal radius ratio but a larger aspect ratio than before, multiple states are again observed. Here they are characterized by even richer roll structure phenomena, including an antisymmetrical roll state.

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  • Received 12 January 2016

DOI:https://doi.org/10.1103/PhysRevFluids.1.024401

©2016 American Physical Society

Physics Subject Headings (PhySH)

Fluid Dynamics

Authors & Affiliations

Roeland C. A. van der Veen1, Sander G. Huisman1, On-Yu Dung (董安儒)1, Ho L. Tang1, Chao Sun2,1,*, and Detlef Lohse1,3,†

  • 1Physics of Fluids Group, MESA+ Institute for Nanotechnology and J.M. Burgers Center for Fluid Dynamics, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands
  • 2Center for Combustion Energy and Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
  • 3Max Planck Institute for Dynamics and Self-Organization, 37077 Göttingen, Germany

  • *chaosun@tsinghua.edu.cn
  • d.lohse@utwente.nl

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Vol. 1, Iss. 2 — June 2016

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