Marginally stable and turbulent boundary layers in low-curvature Taylor–Couette flow

  title={Marginally stable and turbulent boundary layers in low-curvature Taylor–Couette flow},
  author={Hannes J. Brauckmann and Bruno Eckhardt},
  journal={Journal of Fluid Mechanics},
  pages={149 - 168}
Marginal stability arguments are used to describe the rotation number dependence of torque in Taylor–Couette (TC) flow for radius ratios $\unicode[STIX]{x1D702}\geqslant 0.9$ and shear Reynolds number $\mathit{Re}_{S}=2\times 10^{4}$ . With an approximate representation of the mean profile by piecewise linear functions, characterised by the boundary-layer thicknesses at the inner and outer cylinder and the angular momentum in the centre, profiles and torques are extracted from the requirement… 
Double maxima of angular momentum transport in small gap $\eta =0.91$ Taylor–Couette turbulence
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Dynamo Action in a Quasi-Keplerian Taylor-Couette Flow.
The existence of a finite-amplitude dynamo is demonstrated, whereby a suitable initial condition yields mutually sustaining turbulence and magnetic fields, even though neither could exist without the other.
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The transport is most efficient for the counterrotating case along the diagonal in phase space with ω(o) ≈ -0.4ω(i) and the exponent 0.38 corresponds to the ultimate regime scaling for the analogous Rayleigh-Bénard system.
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Velocity structure functions, scaling, and transitions in high-Reynolds-number Couette-Taylor flow.
  • G. S. Lewis, H. Swinney
  • Physics
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
  • 1999
Flow between concentric cylinders with a rotating inner cylinder is studied for Reynolds numbers in the range 2x10(3)<R<10(6) (Taylor Reynolds numbers, 10 < R(lambda)< 290) for a system with radius