IDEAS home Printed from https://ideas.repec.org/h/spr/sprchp/978-3-031-46870-4_14.html
   My bibliography  Save this book chapter

Towards DNS of Droplet-Jet Collisions of Immiscible Liquids with FS3D

In: High Performance Computing in Science and Engineering '22

Author

Listed:
  • Johanna Potyka

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Jonathan Stober

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Jonathan Wurst

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Matthias Ibach

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Jonas Steigerwald

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Bernhard Weigand

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

  • Kathrin Schulte

    (University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR))

Abstract

In-air microfluidics became a new method for technical production processes with ultra-high throughput formerly performed in micro channels. Direct Numerical Simulations (DNS) provide a valuable contribution for the fundamental understanding of multiphase flow and later application design. This chapter presents a feasibility study with first DNS results of droplet-jet collisions of immiscible liquids using the in-house software Free Surface 3D (FS3D). Two cases were investigated with a setup comparable to experiments by Baumgartner et al. [1], where a droplet chain of a glycerol solution hits a jet of silicon oil which encapsulates the droplets. The droplets’ shapes present are observed to be more complex than comprehensible from the two-dimensional images from the experiments. Thus, DNS with FS3D can provide additional information like the surface area or the velocity contributions in order to find analytical models of such collision processes in the future. Simulations of such increasingly complex systems require constant improvement of the numerical solver regarding the code’s performance. Thus, the red-black Gauss-Seidel smoother in the multi-grid solver, the iterative red-black scheme to compute the viscous forces as well as the momentum advection method were enhanced with a cache- and memory usage optimization. An overall performance gain of up to $$33\%$$ 33 % was obtained for a representative test case.

Suggested Citation

  • Johanna Potyka & Jonathan Stober & Jonathan Wurst & Matthias Ibach & Jonas Steigerwald & Bernhard Weigand & Kathrin Schulte, 2024. "Towards DNS of Droplet-Jet Collisions of Immiscible Liquids with FS3D," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '22, pages 197-212, Springer.
    • Handle: RePEc:spr:sprchp:978-3-031-46870-4_14
    DOI: 10.1007/978-3-031-46870-4_14
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a
    for a similarly titled item that would be available.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:sprchp:978-3-031-46870-4_14. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.