• Title/Summary/Keyword: Soof formation and oxidation

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Flamelet Modelling of Soot Formation and Oxidation in a Laminar $CH_4$-Air Diffusion Flame (화염편모델을 이용한 층류확산화염장의 매연 생성 및 산화과정 해석)

  • Kim, Gun-Hong;Kim, Hu-Jung;Kim, Yong-Mo;Kim, Seung-Ku
    • 한국연소학회:학술대회논문집
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    • 2003.12a
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    • pp.3-9
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    • 2003
  • By utilizing a semi-empirical soot model, the applicability of the laminar flamelet concept for simulating the formation and oxidation of soot in the laminar diffusion flame has been studied. The source terms for two transport equations of the soot formation and oxidation are calculated in the mixture fraction/scalar dissipation rate space for laminar flamelets and stored in a library. In this study, emphasis is given to the interaction associated with radiation and soot formation. The radiative heat loss is obtained by solving the radiative transfer equation using the unstructured grid finite volume method with the WSGGM. The calculated temperatures and soot volume fractions agree relatively well with the experimental data and the previous numerical results of Kaplan et al. using the detailed chemistry.

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Flamelet Modelling of Soot Formation and Oxidation in a Laminar $CH_4-Air$ Diffusion Flame (화염편 모델을 이용한 층류확산화염장의 매연 생성 및 산화과정 해석)

  • Kim Gunhong;Kim Hoojoong;Kim Yongmo
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.1
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    • pp.68-75
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    • 2005
  • By utilizing a semi-empirical soot model, the applicability of the laminar flamelet concept fur simulating the formation and oxidation of soot in the laminar diffusion flame has been studied. The source terms for two transport equations of the soot formation and oxidation are calculated in the mixture fraction/scalar dissipation rate space for laminar flamelets and stored in a library. In this study, emphasis is given to the interaction associated with radiation and soot formation. The radiative heat loss is obtained by solving the radiative transfer equation using the unstructured grid finite volume method with the WSGGM. The calculated temperatures and soot volume fractions agree relatively well with the experimental data and the previous numerical results of Kaplan et al. using the detailed chemistry.