Title | Drag Reduction Using Wrinkled Surfaces in High Reynolds Number Laminar Boundary Layer Flow |

Publication Type | Journal Article |

Year of Publication | 2017 |

Authors | Raayai-Ardakani S., McKinley G.H |

Journal | Physics of Fluids |

Volume | 29 |

Start Page | 093605 |

Abstract | Inspired by the design of the ribbed structure of shark skin, passive drag reduction methods using stream-wise riblet surfaces have previously been developed and tested over a wide range of flow conditions. Such textures aligned in the flow direction have been shown to be able to reduce skin friction drag by 4%–8%. Here, we explore the effects of periodic sinusoidal riblet surfaces aligned in the flow direction (also known as a “wrinkled” texture) on the evolution of a laminar boundary layer flow. Using numerical analysis with the open source Computational Fluid Dynamics solver OpenFOAM, boundary layer flow over sinusoidal wrinkled plates with a range of wavelength to plate length ratios ( |

DOI | 10.1063/1.4995566 |