Streak formation in flow over biomimetic fish scale arrays

  title={Streak formation in flow over biomimetic fish scale arrays},
  author={Muthukumar Muthuramalingam and Leo S. Villemin and Christoph Bruecker},
  journal={Journal of Experimental Biology},
ABSTRACT The surface topology of the scale pattern from the European sea bass (Dicentrarchus labrax) was measured using a digital microscope and geometrically reconstructed using computer assisted design modelling. Numerical flow simulations and experiments with a physical model of the surface pattern in a flow channel mimic the flow over the fish surface with a laminar boundary layer. The scale array produces regular rows of alternating, streamwise low-speed and high-speed streaks inside the… Expand
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