The generation of resonant turbulence for a premixed burner

Antonie Alex Verbeek, R.C. Pos, Genie G.M. Stoffels, Bernardus J. Geurts, Th.H. van der Meer

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    Abstract

    Is it possible to optimize the turbulent combustion of a low swirl burner by using resonance in turbu- lence? To that end an active grid is constructed that consists of two perforated disks of which one is rotat- ing, creating a system of pulsating jets, which in the end can be used as a central blocking grid of a low swirl burner. The turbulence originating from this grid is studied by hot wire anemometry to see if there is a frequency for maximal response. Although no res- onant enhancement of the turbulent kinetic energy or the dissipation rate is observed, the results for the two different sets of disks show that significant turbulent fluctuations are introduced mainly in the energy con- taining range and partially in the inertial sub range. These fluctuations represent up to 25% of the total tur- bulent energy and are not caused by pulsations of the mean flow.
    Original languageUndefined
    Title of host publicationProceedings of the 9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM9)
    Place of PublicationThessaloniki
    PublisherERCOFTAC
    Pages1-6
    Number of pages6
    ISBN (Print)not assigned
    Publication statusPublished - Jun 2012
    Event9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, ETMM 2012 - Macedonia Palace Hotel, Thessaloniki, Greece
    Duration: 6 Jun 20128 Jun 2012
    Conference number: 9

    Conference

    Conference9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, ETMM 2012
    Abbreviated titleETMM
    CountryGreece
    CityThessaloniki
    Period6/06/128/06/12

    Keywords

    • EWI-23077
    • MACS-MMS: Multiscale Modelling and Simulation

    Cite this

    Verbeek, A. A., Pos, R. C., Stoffels, G. G. M., Geurts, B. J., & van der Meer, T. H. (2012). The generation of resonant turbulence for a premixed burner. In Proceedings of the 9th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM9) (pp. 1-6). Thessaloniki: ERCOFTAC.