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POD Investigation of Near-Wall Turbulent Structures

[+] Author Affiliations
Gaetano Maria Di Cicca, Angelo Iollo, Pier Giorgio Spazzini, Gaetano Iuso, Michele Onorato

Politecnico di Torino, Torino, Italy

Paper No. FEDSM2002-31266, pp. 565-571; 7 pages
doi:10.1115/FEDSM2002-31266
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

Experimental data of a turbulent boundary layer developing over a flat plate, obtained by Digital Particle Image Velocimetry (DPIV) technique, are analyzed making use of proper orthogonal decomposition (POD). Different POD definitions have been used in order to check their ability in educing the various structures dominating the near wall region. Results show a specific sensitivity depending on the POD definition adopted.

Copyright © 2002 by ASME

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