Numerical Modelling of Soot Formation in Laminar Axisymmetric Ethylene-Air Coflow Flames at Atmospheric and Elevated Pressures

Ahmed Gamaleldin Abdelgadir, Ihsan Allah Rakha, Scott A. Steinmetz, Antonio Attili, Fabrizio Bisetti, William L. Roberts

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A set of coflow diffusion flames are simulated to study the formation, growth, and oxidation of soot in flames of diluted hydrocarbon fuels, with focus on the effects of pressure. Firstly, we assess the ability of a high performance CFD solver, coupled with detailed transport and kinetic models, to reproduce experimental measurements of a series of ethylene-air coflow flames. Detailed finite rate chemistry describing the formation of Polycyclic Aromatic Hydro-carbons is used. Soot is modeled with a moment method and the resulting moment transport equations are solved with a Lagrangian numerical scheme. Numerical and experimental results are compared for various pressures. Finally, a sensitivity study is performed assessing the effect of the boundary conditions and kinetic mechanisms on the flame structure and stabilization properties.
    Original languageEnglish (US)
    Title of host publicationProceedings of the European Combustion Meeting 2015
    StatePublished - Mar 30 2015

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