Low-order models of the fluctuating wall pressure in an incompressible turbulent impinging jet

Joseph W. Hall, Julie Ausseur, Jeremy T. Pinier, Mark N. Glauser

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The fluctuating wall pressure field measured simultaneously at 137 points in an impinging jet with Re D=23,000 and a nozzle-to-plate spacing of two diameters. A previous time averaged azimuthal decomposition 1 indicated that the fluctuating pressure field could be accurately described using few azimuthal modes, indicating this flow is an excellent candidate for a Low-Order Dynamical Systems (LODS) model. The present model was developed using a method similar as Ricaud, 2 whereby a general cubic order system of equations is fit to the experimentally determined Fourier coefficients. A LODS model developed using only azimuthal modes 0, 1 and 2 was able to reasonably accurately capture the behaviour of the fluctuating pressure field at r/D = 1.5. Downstream at r/D = 2.0, where the pressure field is more three-dimensional, the addition of azimuthal mode 3 is required to produce a stable system of equations, that again, reasonably captures the dynamics of the fluctuating pressure field. The success of this technique here, suggests that it may prove useful in high speed flow control applications where some degree of predictive ability is required.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 3rd AIAA Flow Control Conference
Pages1759-1770
Number of pages12
StatePublished - Dec 11 2006
Event3rd AIAA Flow Control Conference - San Francisco, CA, United States
Duration: Jun 5 2006Jun 8 2006

Publication series

NameCollection of Technical Papers - 3rd AIAA Flow Control Conference
Volume3

Other

Other3rd AIAA Flow Control Conference
CountryUnited States
CitySan Francisco, CA
Period6/5/066/8/06

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hall, J. W., Ausseur, J., Pinier, J. T., & Glauser, M. N. (2006). Low-order models of the fluctuating wall pressure in an incompressible turbulent impinging jet. In Collection of Technical Papers - 3rd AIAA Flow Control Conference (pp. 1759-1770). (Collection of Technical Papers - 3rd AIAA Flow Control Conference; Vol. 3).