A Proposal of United Combustion Model for Premixed and Diffusion Flames and Its Evaluation (2^nd Report: Verification by the Laminar Couterflow Diffusion Flame)

Abstract

To verify the accuracy, the numerical simulation of the one dimensional counterflow diffusion flame was performed using of the united combustion model, which is proposed on the 1^st report. The model is applicable to the premixed and diffusion flame. To compare the results, the two scalar Flamelet model was also applied to one dimensional counterflow diffusion flame. The main results are follows, 1) The distributions of the temperature and the mole fraction of each gas composition through the diffusion flame were in good agreement with experimental data, which was measured by Tsuji and Yamaoka[6]. 2) On the results of the two scalar model, some discrepancies on the distribution of the temperature and the mole fraction were found with experimental data. It depends on the estimation method of the temperature and the mass fraction using of G and the mixture fraction.