Numerical study on non-premixed swirl flame flow and combustion  characteristics

Wenqing Mei; Lin Cheng; Congyang Xiao; Siyang Yi; Zaixing Yang; Aoshuang Ding

doi:10.1117/12.3025787

8 April 2024 Numerical study on non-premixed swirl flame flow and combustion characteristics

Wenqing Mei, Lin Cheng, Congyang Xiao, Siyang Yi, Zaixing Yang, Aoshuang Ding

Proceedings Volume 13090, International Conference on Computer Application and Information Security (ICCAIS 2023); 130900M (2024) https://doi.org/10.1117/12.3025787
Event: International Conference on Computer Application and Information Security (ICCAIS 2023), 2023, Wuhan, China

Abstract

Numerical simulations of a radial swirl burner were performed using the RNG k-ε turbulence model. The simulated results were compared with experimental data under both pure flow and combustion conditions to analyze the swirling flow and flame combustion characteristics of the non-premixed burner. The Research result illustrated that within the swirl, there exists a central recirculation zone (CRZ), and an increase in the width of the CRZ would affect the radial expansion of the swirl jet (SJ). Methane combustion primarily occurs within the shear layers (ISL and OSL), resulting in a conical flame shape. Additionally, a flame ring forms near the injection orifice and the recirculation bubbles generated by the swirl generator contribute to the stable burning of the flame ring.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wenqing Mei, Lin Cheng, Congyang Xiao, Siyang Yi, Zaixing Yang, and Aoshuang Ding "Numerical study on non-premixed swirl flame flow and combustion characteristics", Proc. SPIE 13090, International Conference on Computer Application and Information Security (ICCAIS 2023), 130900M (8 April 2024); https://doi.org/10.1117/12.3025787

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