Abstract
In this paper the effect of flame holder geometry on flame structure is studied. The obtained numerical results using realizable k-ɛ and β-PDF models show a good agreement with experimental data. The results show that increasing in flame holder length decreases flame length and increases flame temperature. Additionally, it is observed that flame lengths decrease by increasing in flame holder radius and increase for larger radii. Furthermore in various radii, the flame temperature is higher for smaller flame lengths. It was found that behavior of flame structure is mainly affected by the mass flow rate of hot gases that come near the reactant by the recirculation zone.
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Seyed Abdolmehdi Hashemi is Associated Professor of Mechanical Engineering at the University of Kashan in Iran. He studied at Sharif University of Technology (BS-1995) and Tarbiat Modarres University (MA-1998 and PhD-2004). He is interested in research fields such as; combustion in porous media, non-premixed combustion and detonation. He has written 13 papers in different Journals and has presented about 30 papers in conferences.
Kiumars Mazaheri is a professor of mechanical engineering at Tarbiat Modares University (TMU), Tehran, Iran. He received his Ph.D. from McGill University in 1996. He is the director of the Energy Conversion Group and the head of the Gas Dynamics Laboratory in TMU. His research interests include numerical simulation of reacting flow, explosion modeling, and the physics of shock waves. He has co-authored more than 50 refereed journal papers and more than 70 conference papers. He serves as the executive manager of the journal Fuel and Combustion, and is a member of the editorial boards of several journals in the field of thermo-fluids that are published in Iran.
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Hashemi, S.A., Hajialigol, N., Fattahi, A. et al. Investigation of a flame holder geometry effect on flame structure in non-premixed combustion. J Mech Sci Technol 27, 3505–3512 (2013). https://doi.org/10.1007/s12206-013-0876-2
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DOI: https://doi.org/10.1007/s12206-013-0876-2