A priori assessment of flame surface density modelling for large-eddy simulation of sound generation by turbulent premixed flames

P Panek; D Brouzet; M Talei; RL Gordon

Journal article

A priori assessment of flame surface density modelling for large-eddy simulation of sound generation by turbulent premixed flames

P Panek, D Brouzet, M Talei, RL Gordon

Combustion and Flame | ELSEVIER SCIENCE INC | Published : 2022

DOI: 10.1016/j.combustflame.2022.112143

Abstract

This paper presents an a priori assessment of flame surface density modelling in the context of large-eddy simulation (LES), with a focus on flame-generated sound. A direct numerical simulation (DNS) dataset of a stoichiometric premixed, methane-air, round jet flame in the thin reaction zones (TRZ) regime is used to perform this assessment. Models for different parts of the filtered flame front displacement term (ρSd)|∇c|¯ are studied, including those for the surface averaged density weighted displacement speed (ρSd)¯s and flame wrinkling factor models proposed by Charlette at al. (2002), Fureby (2005) and Muppala et al. (2005). In the first step, the wrinkling factor, the flame surface dens..

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University of Melbourne Researchers

Mohsen Talei Author

Robert Gordon Author

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Grants

Awarded by National Computational Infrastructure

Funding Acknowledgements

The authors acknowledge the generous support of the European Centre for Research and Advanced Training in Scientific Computation (CERFACS, https:// www.cerfacs.fr) , in providing the source code for NTMIX-CHEMKIN. In particular, the authors thank Dr. Benedicte Cuenot for her help with this code. This work was supported by the Australian Research Council (ARC) [grant DE180100416] , by resources and services from the National Computational Infrastructure (NCI) with funding from the Australian Government, and by resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia.