Journal article
Head-on quenching of laminar premixed methane flames diluted with hot combustion products
B Jiang, RL Gordon, M Talei
Proceedings of the Combustion Institute | ELSEVIER SCIENCE INC | Published : 2019
Abstract
Transient head-on quenching of laminar premixed methane flames diluted with hot combustion products is analyzed using full-chemistry 1D DNS. The impact of the dilution level, pressure and wall temperature on carbon monoxide (CO) emissions is investigated. Increasing dilution level and pressure reduce peak average near-wall CO concentrations, and reduce the near-wall CO reduction rate. However, the peak average near-wall CO and near-wall CO reduction rate increase with increasing wall temperature. Analysis of the species transport budget for CO near the wall before, during and after quenching indicates that there are conditions where diffusion is the dominant transport term. As a consequence,..
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Funding Acknowledgements
Robert Gordon is supported by the Royal Academy of Engineering, through the Newton International Fellowship Alumni Programme. The authors acknowledge the generous support of the European Centre for Research and Advanced Training in Scientific Computation (CERFACS, http://www.cerfacs.fr), in providing the authors with the source code for NTMIX-CHEMKIN. The authors thank Benedicte Cuenot and Davy Brouzet for their help with NTMIX-CHEMKIN. The research was supported by computational resources on the Australian NCI Facility through the National Computational Merit Allocation Scheme and the Pawsey Supercomputing Centre. Bin Jiang acknowledges the financial support of the China Scholarship Council.