Experiments with three-dimensional riblets as an idealized model of shark skin

@article{Bechert2000ExperimentsWT,
  title={Experiments with three-dimensional riblets as an idealized model of shark skin},
  author={Dietrich W. Bechert and Martin Bruse and Wolfram Hage},
  journal={Experiments in Fluids},
  year={2000},
  volume={28},
  pages={403-412}
}
Abstract The skin of fast sharks exhibits a rather intriguing three-dimensional rib pattern. Therefore, the question arises whether or not such three-dimensional riblet surfaces may produce an equivalent or even higher drag reduction than straight two-dimensional riblets. Previously, the latter have been shown to reduce turbulent wall shear stress by up to 10%. Hence, the drag reduction by three-dimensional riblet surfaces is investigated experimentally. Our idealized 3D-surface consists of… Expand
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  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
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Abstract The paper summarizes the status of the ongoing NASA Langley research program in the area of turbulent skin friction reduction. The discussion is organized under the general headings of (a)Expand