Abstract

The industrial combustion sector needs relatively simple but accurate radiation gas model to perform multiphysics simulations. Built with high resolution spectral absorption line databases, the Spectral-Line-Weighted-Sum of Grey-Gases model (SLWSGG) with a restricted number of grey gases, may meet this need. This paper presents an easier method to optimise the SLW grey gases in comparison with the original method. The optimisation procedure proposed in this work is based on total quantities values (radiative fluxes or source terms) analytically calculated on the equivalent 1D medium.

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