Low-dimensional tools for closed-loop flow-control in high reynolds number Tu rbulent flows

Joseph W. Hall, Charles E. Tinney, Julie M. Ausseur, Jeremy T. Pinier, Andre M. Hall, Mark N. Glauser

Research output: Chapter in Book/Entry/PoemConference contribution

4 Scopus citations


A summary of recent experimental research efforts at Syracuse University aimed at active flow control is presented with emphasis placed on the development of low-dimensional tools to facilitate closed-loop control. Results indicate that the near-field pressure in a Mach 0.85 high Reynolds number jet is low dimensional and it is primarily the azimuthal near-field pressure mode 0 that correlates with the acoustic field. The turbulent velocity field in the high-speed jet can also be estimated from the near-field pressure, and is used herein to predict the far-field acoustics. Tools being developed to improve recent successful, high Reynolds number, closed-loop flow control in a NACA 4412 airfoil are also discussed. Together, these results set the framework for active flow control in the high-speed jet with the goal of reducing jet noise.

Original languageEnglish (US)
Title of host publicationIUTAM Symposium on Flow Control and MEMS - Proceedings of the IUTAM Symposium
Number of pages18
StatePublished - 2008
EventIUTAM Symposium on Flow Control and MEMS - London, United Kingdom
Duration: Sep 19 2006Sep 22 2006

Publication series

NameSolid Mechanics and its Applications
ISSN (Print)1875-3507


OtherIUTAM Symposium on Flow Control and MEMS
Country/TerritoryUnited Kingdom


  • Aeroacoustics
  • Coherent structures
  • Flow control
  • Flow separation
  • Jets
  • Low-dimensional techniques

ASJC Scopus subject areas

  • Mechanical Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Acoustics and Ultrasonics
  • Civil and Structural Engineering


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