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Soot Oxidation in a Turbulent Temporally Evolving Non-premixed Air/ethylene Jet

In: High Performance Computing in Science and Engineering '23

Author

Listed:
  • Gandolfo Scialabba

    (RWTH Aachen University, Institute for Combustion Technology)

  • Lukas Berger

    (RWTH Aachen University, Institute for Combustion Technology)

  • Heinz Pitsch

    (RWTH Aachen University, Institute for Combustion Technology)

Abstract

A direct numerical simulation (DNS) of a turbulent temporally evolving non-premixed air/ethylene jet, specifically designed for soot oxidation, is presented in this work. The performed DNS is currently the largest available data set on soot formation and consumption in a turbulent environment. In addition, it is the first large-scale simulation to cover the later stages of soot evolution. A detailed description of the soot evolution, with a particular focus on soot oxidation, is provided. Contributions from both OH radicals and molecular oxygen to the soot particles’ depletion and their distribution in mixture fraction space are analyzed. In addition, an assessment of existing subfilter models to account for soot-gas phase interaction, particularly relevant for soot oxidation, is performed, and possible improvements are inferred.

Suggested Citation

  • Gandolfo Scialabba & Lukas Berger & Heinz Pitsch, 2026. "Soot Oxidation in a Turbulent Temporally Evolving Non-premixed Air/ethylene Jet," Springer Books, in: Thomas Ludwig & Peter Bastian & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '23, pages 301-317, Springer.
    • Handle: RePEc:spr:sprchp:978-3-031-91312-9_21
    DOI: 10.1007/978-3-031-91312-9_21
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