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Validation of Self-Adaptive Turbulence Eddy Simulation for Double and Triple Swirling Turbulent Flows

Author

Listed:
  • Tao Chen

    (College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

  • Bo Wang

    (Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China)

  • Zhaoyang Xia

    (School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China)

  • Xingsi Han

    (College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

Abstract

In the present study, a recently developed improved Self-Adaptive Turbulence Eddy Simulation (SATES) turbulence model (marked as SATES-Mixed), is validated for the simulation of complex multiple swirling turbulent flows. The new SATES-Mixed method aims to enhance both the performances in the wall region as well as the free shear layer region. For comparisons, the Large Eddy Simulation (LES) with WALE and Smagorinsky sub-grid model is also conducted with the same numerical setups. Compared with the original widely used SATES model, the SATES-Mixed model inherits the low grid sensitivity and high accuracy for free turbulence while improving the calculation accuracy in the near-wall regions. Therefore, the prediction ability of the SATES-Mixed model is validated in challenging complex swirling flows encountered in multi-stage swirl combustion chambers. Good overall agreement between SATES-Mixed and experiments is observed with relatively coarse mesh, which is even better than the LES-WALE results. The SATES-Mixed model accurately captures the typical single-vortex tube PVC evolution characteristics in a double swirling combustor (GTMC) and effectively models the complex interactions between single/double vortex tubes in a three-stage swirling combustor, including their intertwined twisting motions and mutually evolving processes.

Suggested Citation

  • Tao Chen & Bo Wang & Zhaoyang Xia & Xingsi Han, 2025. "Validation of Self-Adaptive Turbulence Eddy Simulation for Double and Triple Swirling Turbulent Flows," Energies, MDPI, vol. 18(16), pages 1-21, August.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:16:p:4249-:d:1721331
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    References listed on IDEAS

    as
    1. Tao Liu & Fuqiang Bai & Zixuan Zhao & Yuzhen Lin & Qing Du & Zhijun Peng, 2017. "Large Eddy Simulation Analysis on Confined Swirling Flows in a Gas Turbine Swirl Burner," Energies, MDPI, vol. 10(12), pages 1-18, December.
    2. Ali Cemal Benim & Cansu Deniz Canal & Yakup Erhan Boke, 2021. "A Validation Study for RANS Based Modelling of Swirling Pulverized Fuel Flames," Energies, MDPI, vol. 14(21), pages 1-33, November.
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