エタノール簡略化反応機構による2次元予混合/拡散火炎の数値計算(反応・多相系燃焼・反応(2),一般講演)

概要

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Numerical simulations of ethanol combustion with a reduced kinetic mechanism were performed for two-dimensional Bunsen flames and diffusion flames. A reduced kinetic mechanism was generated based on the quasi-steady-state assumption (QSSA) using the Computational Singular Perturbation (CSP) method and its validity and the application range were tested using one-dimensional premixed flame calculations prior to the 2-D simulations. Numerical results, i.e., temperature, chemical species profiles of the detailed mechanism and reduced kinetic mechanism were in good agreement for both 2-D Bunsen and diffusion flame, which showed the validity of the reduced kinetic mechanism of the present study. Bunsen flame calculations showed the large reduction of calculation cost when the reduced mechanism was used. Two-dimensional diffusion flame calculations also showed the advantage of a reduced kinetic mechanism over In-situ Adaptive Tabulation (ISAT) method.
2009-09-02