A Novel Method to Induce Hydrodynamic Instability in Boundary Layer Flows (Abstract/Poster in atti di convegno)

Type
Label
  • A Novel Method to Induce Hydrodynamic Instability in Boundary Layer Flows (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • Morteza Gharib David Jeon Francisco Pereira Beverley McKeon (2013)
    A Novel Method to Induce Hydrodynamic Instability in Boundary Layer Flows
    in 66th Annual Meeting of the Division of Fluid Dynamics, Pittsburgh, PA, November 24-26, 2013
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Morteza Gharib David Jeon Francisco Pereira Beverley McKeon (literal)
Pagina inizio
  • 477 (literal)
Pagina fine
  • 477 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://meetings.aps.org/link/BAPS.2013.DFD.R25.3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • 66th Annual Meeting of the Division of Fluid Dynamics (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 58 (literal)
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  • Series II (literal)
Rivista
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  • 520 (literal)
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  • 18 (literal)
Note
  • Abstract (literal)
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  • California Institute of Technology California Institute of Technology CNR-INSEAN California Institute of Technology (literal)
Titolo
  • A Novel Method to Induce Hydrodynamic Instability in Boundary Layer Flows (literal)
Abstract
  • We have developed a method to induce passive hydrodynamic displacement of boundary layer type flows by implementing spatially patterned hydrophobic patches in the form of bands and spots on the surface of a boundary layer plate. These patterns can be designed as parallel bands of a certain width, spacing and direction, or spots with a random or regular distribution of a certain shape, size and spatial density. We will present results from a series of experiments where the response of boundary layers in low to medium Reynolds number ranges to these spatial forcing will be demonstrated. Also, we will discuss~potential use of this novel~technique for drag reduction and separation delay applications where our technique could be used to replace riblets, trip wires and vortex generators. (literal)
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