Scale Resolving Simulations of Cambridge/Sandia Turbulent Swirling Premixed Flames

Kiyici F., Turkeri H.

AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022, California, United States Of America, 3 - 07 January 2022 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.2514/6.2022-1101
  • City: California
  • Country: United States Of America
  • Middle East Technical University Affiliated: Yes


© 2022, American Institute of Aeronautics and Astronautics Inc.. All rights reserved.A numerical study is performed to investigate the flow field characteristics of Cambridge/Sandia swirling stratified flame series under both reacting and isothermal operating conditions. Two different SRS models (LES and SAS) are employed and the results are compared. In reacting flow simulations, the chemistry is represented by the FGM model in conjunction with presumed PDF method. The simulations are performed using open-source OpenFOAM. Dynamic k-equation subgrid scale model is employed in the LES and the k- SST based SAS model is used for simulations. According to simulation results, both of the SRS models are in agreement with the mean and r.m.s. velocity profiles of the experimental data in both reacting and isothermal conditions. Additionally, both of the SRS models coupled with the FGM model predicts the reactive flow field remarkably well. In terms of the computational time the SAS is approximately four times faster than the LES, which demonstrates a strong potential of the SAS in industrial applications.