Droplet behaviour in a Ranque-Hilsch vortex tube

R. Liew, W.R. Michalek, J.C.H. Zeegers, Johannes G.M. Kuerten

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    8 Citations (Scopus)
    63 Downloads (Pure)

    Abstract

    The vortex tube is an apparatus by which compressed gas is separated into cold and warm streams. Although the apparatus is mostly used for cooling, the possibility to use the vortex tube as a device for removing non-desired condensable components from gas mixtures is investigated. To give first insight on how droplets behave in the vortex tube, a MATLAB model is written. The model tracks Lagrangian droplets in time and space according to the forces acting on the droplets. Phase interactions, i.e. evaporation or condensation, are modeled according to the kinetic approach for phase interactions. Liquid (water) concentrations are shown for two cases where the humidity at the inlet of the vortex tube is varied from 0% to 50%. It is clearly observed from the results that the concentration of liquid increases with increasing humidity. The higher this concentration is, the higher the probability that droplets collide with each other and form larger droplets which are swirled towards the wall to form an easy-to-separate liquid film.
    Original languageUndefined
    Title of host publication13th European Turbulence Conference
    Place of PublicationBristol
    PublisherIOP Publishing
    Pages052013
    Number of pages9
    ISBN (Print)1742-6588
    DOIs
    Publication statusPublished - Sep 2011
    Event13th European Turbulence Conference, ETC 2011 - Warsaw, Poland
    Duration: 12 Sep 201115 Sep 2011
    Conference number: 13

    Publication series

    NameJournal of Physics: Conference Series
    PublisherIOP
    Number5
    Volume138
    ISSN (Print)1742-6588

    Conference

    Conference13th European Turbulence Conference, ETC 2011
    Abbreviated titleETC13
    CountryPoland
    CityWarsaw
    Period12/09/1115/09/11

    Keywords

    • METIS-285222
    • EWI-21164
    • IR-79204

    Cite this

    Liew, R., Michalek, W. R., Zeegers, J. C. H., & Kuerten, J. G. M. (2011). Droplet behaviour in a Ranque-Hilsch vortex tube. In 13th European Turbulence Conference (pp. 052013). (Journal of Physics: Conference Series; Vol. 138, No. 5). Bristol: IOP Publishing. https://doi.org/10.1088/1742-6596/318/5/052013