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Flame behaviour and flame location in large-eddy simulation of the turbulent premixed combustion

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  • Alhumairi, Mohammed KH Abbas
  • Almahdawi, Yasseen A.
  • Nawi, Sami A.

Abstract

The lean premixed flame of a fuel mixture in a jet flow combustor was computationally investigated, and results were compared with experimental data at a constant thermal load of 9 kW and constant equivalence ratio of 0.588. Three variables, namely, the amplitude of pulsation, frequency (f), and the mass flow rate ratio (MFRR) of the inlet region, were considered to describe the turbulent effect and investigate the topology and location of the flame that represent the characteristics of sinusoidal wave inlet velocity. Results showed that flame topology strongly depended on varying the turbulence parameters examined, especially f and MFRR. The V-shaped flame with corrugated wings formed in the vicinity of the flame holder reflected the turbulence–combustion interaction in all test cases. The suggested large-eddy simulation (LES) model was suitable in predicting the flame location and flame topology associated with pulsating jet flow.

Suggested Citation

  • Alhumairi, Mohammed KH Abbas & Almahdawi, Yasseen A. & Nawi, Sami A., 2021. "Flame behaviour and flame location in large-eddy simulation of the turbulent premixed combustion," Energy, Elsevier, vol. 232(C).
    • Handle: RePEc:eee:energy:v:232:y:2021:i:c:s0360544221013153
    DOI: 10.1016/j.energy.2021.121067
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    References listed on IDEAS

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    1. Nemitallah, Medhat A. & Kewlani, Gaurav & Hong, Seunghyuck & Shanbhogue, Santosh J. & Habib, Mohamed A. & Ghoniem, Ahmed F., 2016. "Investigation of a turbulent premixed combustion flame in a backward-facing step combustor; effect of equivalence ratio," Energy, Elsevier, vol. 95(C), pages 211-222.
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    Cited by:

    1. Yuan, Chenheng & Lu, Jiangchuan & Li, Shilei, 2023. "Thermoelectric coupling effect of secondary injection on gasoline fuel spray and mixing of a free vibration combustion alternator," Energy, Elsevier, vol. 281(C).

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