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    A numerical study on soot formation and evolution in pressurized turbulent sooting flames

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    AIAA_turbulent_soot_full_final.pdf
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    Description:
    Accepted manuscript
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    Type
    Conference Paper
    Authors
    Zhou, Dezhi
    Vaage, Anders
    Yang, Suo
    Boyette, Wesley cc
    Guiberti, Thibault
    Roberts, William L. cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2021-01-04
    Permanent link to this record
    http://hdl.handle.net/10754/667476
    
    Metadata
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    Abstract
    Understandings on soot formation and evolution in pressurized flames are of significant interest due to the increasing operating pressures in different combustors and the accompanying increased soot emissions. In this study, a series of pressurized turbulent sooting flames at 1 bar, 3 bar and 5 bar, are simulated to study the pressure effect on the soot formation and evolution. The inflow conditions are chosen such that the Reynolds number at different pressures keep constant. Via a Radiation Flamelet Progress Variable (RFPV) approach with a conditional soot sub-filter Probability Density Function (PDF) to consider the turbulence-chemistry-soot interaction, quantitatively good agreements (e.g., maximum discrepancy within one order of magnitude) are achieved for soot volume fraction predictions compared with the experimental data at different pressures. Soot volume fraction source terms are then discussed to show the pressure effect on nucleaion, condensation, surface growth and oxidation at different axial positions in these flames.
    Citation
    Zhou, D., Vaage, A., Boyette, W. R., Guiberti, T., Roberts, W. L., & Yang, S. (2021). A Numerical Study on Soot Formation and Evolution in Pressurized Turbulent Sooting Flames. AIAA Scitech 2021 Forum. doi:10.2514/6.2021-0189
    Sponsors
    S. Yang gratefully acknowledges the faculty start-up funding from the University of Minnesota and the grant support from NSF CBET 2038173. Part of the simulation was conducted on the computational resources from the Minnesota Supercomputing Institute (MSI).
    Publisher
    American Institute of Aeronautics and Astronautics
    Conference/Event name
    AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
    ISBN
    9781624106095
    DOI
    10.2514/6.2021-0189
    Additional Links
    https://arc.aiaa.org/doi/10.2514/6.2021-0189
    ae974a485f413a2113503eed53cd6c53
    10.2514/6.2021-0189
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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