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2004•Doryoku, Enerugi Gijutsu Shinpojiumu koen ronbunshu/Doryoku, enerugi gijutsu no saizensen koen ronbunshuOpen access

Development of Numerical Simulation Method for Turbulent Diffusion Flame of DME

Tomohiko Furuhata, Naoki Kishi, Masanori Yasunaga, Haruo Katagiri, Tsuguhiko Nakagawa, Yoshinao SUZUKI

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Abstract

We have developed a numerical combustion simulation method for turbulent diffusion flame of DME (Dimethyl Ether) In this simulation, the assumed PDF model is used as turbulent combustion model The relation between the concentrations of chemical species in combustion gas and mixture fraction are obtained from the calculated result of counterflow diffusion flame using the detailed chemical kinetics mechanism of oxidation of methane and DME The simulated results (the profiles of temperature and chemical species concentrations in an experimental combustor) were compared with the measured data From the comparisons, it was shown that the combustion simulation developed in this study could predict the character of turbulent diffusion flame of DME.

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We have developed a numerical combustion simulation method for turbulent diffusion flame of DME (Dimethyl Ether) In this simulation, the assumed PDF model is used as turbulent combustion model The relation between the concentrations of chemical species in combustion gas and mixture fraction are obtained from the calculated result of counterflow diffusion flame using the detailed chemical kinetics mechanism of oxidation of methane and DME The simulated results (the profiles of temperature and chemical species concentrations in an experimental combustor) were compared with the measured data From the comparisons, it was shown that the combustion simulation developed in this study could predict the character of turbulent diffusion flame of DME.

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Available abstract

We have developed a numerical combustion simulation method for turbulent diffusion flame of DME (Dimethyl Ether) In this simulation, the assumed PDF model is used as turbulent combustion model The relation between the concentrations of chemical species in combustion gas and mixture fraction are obtained from the calculated result of counterflow diffusion flame using the detailed chemical kinetics mechanism of oxidation of methane and DME The simulated results (the profiles of temperature and chemical species concentrations in an experimental combustor) were compared with the measured data From the comparisons, it was shown that the combustion simulation developed in this study could predict the character of turbulent diffusion flame of DME.

Key concepts: Diffusion flame, Combustion, Combustor, Turbulence, Turbulent diffusion, Dimethyl ether, Diffusion, Premixed flame

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