Free shear layer development in an ejector: A jet in an axisymmetric ducted coflow

T. R. Cochrane, D. R. Buttsworth, B. Thornber, M. Dennis

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The time-averaged development of axisymmetric compressible gas jets’ free shear layer (FSL) is investigated through experiments. The research is undertaken with reference to ejectors: these devices increase the total specific enthalpy of a pipe flow and can utilise a renewable or recovered energy source. Lowering a jet’s Mach number can reduce losses due to viscosity and compressibility. There is potential for ejector efficiency increases through investigation of loss mechanisms associated with FSL development. Tests characterised the FSL in terms of the pitot and static pressure fields in two spatial dimensions. A baseline experiment used nitrogen gas in the jet and co-flow, and further tests were performed with the co-flowing gas species changed to argon. The methodology and results inform future work to direct research efforts towards developing more efficient ejectors.

    Original languageEnglish
    Title of host publicationProceedings of the 20th Australasian Fluid Mechanics Conference, AFMC 2006
    PublisherAustralasian Fluid Mechanics Society
    ISBN (Electronic)9781740523776
    Publication statusPublished - 2016
    Event20th Australasian Fluid Mechanics Conference, AFMC 2006 - Perth, Australia
    Duration: 5 Dec 20168 Dec 2016

    Publication series

    NameProceedings of the 20th Australasian Fluid Mechanics Conference, AFMC 2016

    Conference

    Conference20th Australasian Fluid Mechanics Conference, AFMC 2006
    Country/TerritoryAustralia
    CityPerth
    Period5/12/168/12/16

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