Air cavities at the inner cylinder of turbulent Taylor–Couette flow

  title={Air cavities at the inner cylinder of turbulent Taylor–Couette flow},
  author={Ruben A. Verschoof and Dennis Bakhuis and Pim Adriaan Bullee and Sander G. Huisman and Chao Sun and Detlef Lohse},
  journal={International Journal of Multiphase Flow},

The influence of wall roughness on bubble drag reduction in Taylor–Couette turbulence

We experimentally study the influence of wall roughness on bubble drag reduction in turbulent Taylor–Couette flow, i.e. the flow between two concentric, independently rotating cylinders. We measure

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A thermal turbulent Taylor-Couette facility has been designed to investigate turbulent flows generated by differential rotation and radial temperature gradient. It consists of a cylindrical annulus

Affecting drag in turbulent Taylor-Couette flow

Turbulent flows are omnipresent in nature and technology. The majority of flows encountered in daily life and in industrial applications deal with rough walls and transient effects. Furthermore, many

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Water-air flow in straight pipes and across 90 degrees sharp-angled mitre elbows

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Bubble puzzles: From fundamentals to applications

  • D. Lohse
  • Physics
    Physical Review Fluids
  • 2018
For centuries, bubbles have fascinated artists, engineers, and scientists alike. In spite of century-long research on them, new and often surprising bubble phenomena, features, and applications keep



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Air lubrication to reduce hull skin friction is an idea that originated more than a century ago. There are few implementations of this concept, and there are even fewer systematic investigations at

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The lubrication of external liquid flow with a bubbly mixture or gas layer has been the goal of engineers for many years, and this article presents the underlying principles and recent advances of

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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.