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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/26353

Title: An improved formulation of the Bray-Moss-Libby (BML) model for SI engine combustion modelling
Authors: Ranasinghe, Chathura P.
Malalasekera, W.
Issue Date: 2017
Citation: RANASINGHE, C.P. and MALALASEKERA, W., 2017. An improved formulation of the Bray-Moss-Libby (BML) model for SI engine combustion modelling. Presented at the Tenth Mediterranean Combustion Symposium (MCS-10), Naples, Italy, 17-21st September.
Abstract: In this paper an improved version of the BML model has been developed so that it could be applied to wall-bounded combustion modelling, eliminating the wall flame acceleration problem. Based on the Kolmogorov-Petrovski-Piskunov (KPP) analysis and fractal theory, a new dynamic formulation has been proposed to evaluate the mean flame wrinkling scale making necessary allowance for spatial inhomogeneity of turbulence. A novel empirical correlation has been derived based on experimentally estimated flame image data to quantify the quenching rates near solid boundaries. The proposed modifications were then applied to simulate premixed combustion in two spark ignition engines with different operating conditions. Results show that the present improvements have been successful in eliminating the wall flame acceleration problem found with the original BML model, while accurately predicting the in-cylinder pressure rise, mass burn rates and heat release rates.
Description: This is a conference paper.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/26353
Publisher Link: http://www.mcs-2017.irc.cnr.it/
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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