Smooth and rough boundaries in turbulent Taylor-Couette flow.

@article{Berg2003SmoothAR,
  title={Smooth and rough boundaries in turbulent Taylor-Couette flow.},
  author={Thomas H van den Berg and Charles R. Doering and Detlef Lohse and Daniel P. Lathrop},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2003},
  volume={68 3 Pt 2},
  pages={036307}
}
We examine the torque required to drive the smooth or rough cylinders in turbulent Taylor-Couette flow. With rough inner and outer walls the scaling of the dimensionless torque G is found to be consistent with pure Kolmogorov scaling G approximately Re2. The results are interpreted within the Grossmann-Lohse theory for the relative role of the energy dissipation rates in the boundary layers and in the bulk; as the boundary layers are destroyed through the wall roughness, the torque scaling is… CONTINUE READING

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