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Studies on Structures of Turbulent Swirling Coal Flames by Large-Eddy Simulation
Version 1
: Received: 1 October 2023 / Approved: 2 October 2023 / Online: 2 October 2023 (05:11:35 CEST)
How to cite: Zhou, L.; Hu, L. Studies on Structures of Turbulent Swirling Coal Flames by Large-Eddy Simulation. Preprints 2023, 2023100044. https://doi.org/10.20944/preprints202310.0044.v1 Zhou, L.; Hu, L. Studies on Structures of Turbulent Swirling Coal Flames by Large-Eddy Simulation. Preprints 2023, 2023100044. https://doi.org/10.20944/preprints202310.0044.v1
Abstract
Swirling coal flames are encountered in swirl burners of boiler furnaces and cyclone coal combustors, and were studied using large-eddy simulation (LES) in reported references. However, the structures of swirling coal flames remain to be further studied. In the present paper LES of swirling coal flames is conducted for two combustors using two gas combustion models. The statistical simulation results are accessed by experiments and the instantaneous simulation results are used to analyze the specific features of flame structures of four cases. It is seen that different inlet flow conditions and different secondary-air flow rate lead to different flame structures
Keywords
swirling coal combustion; flame structure; large-eddy simulation
Subject
Engineering, Energy and Fuel Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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