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  • [ October 25, 2019]

    High-Fidelity Simulation of Premixed Flames

  • Speaker:
    Mohsen Talei
    Date:
    Oct. 23, 2019
    Time:
    3:30-4:30pm
    Location:
    Room 210, COE Building No.1
    Host:
    Yue Yang
  • Abstract
  • Lean premixed combustion is the desired combustion regime in industrial gas turbines. It results in a low level of NOX due to operating at lower temperatures and facilitates better combustion efficiency. However, the primary issue with operating gas turbines in this regime is thermoacoustic instability, commonly initiated by combustion-generated sound. To avoid this type of instability, the mechanism of sound generation by premixed flames needs to be fully understood. This presentation will provide a technical review of our understanding of the mechanism of sound generation by premixed flames. Examples from direct numerical simulation (DNS) studies undertaken at the University of Melbourne are provided. Furthermore, the implications of the findings for developing accurate models that can predict combustion-generated sound are discussed.
  • Biography
  • Dr. Mohsen Talei is a Discovery Early Career Researcher (DECRA Fellow) of the Australian Research Council (ARC) and a Senior Lecturer in the Department of Mechanical Engineering. Mohsen joined the University of Melbourne as a staff member in 2014, having previously completed post-doctoral research at the University of New South Wales (UNSW) and a PhD at the University of Melbourne. Mohsen’s research involves significant use of high-performance computing to develop predictive tools for designing cleaner gas turbines and reciprocating engines.