한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제7권5호
  • /
  • Pages.40-54
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  • 1999
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

대향류 에틸렌/공기 비예혼합 화염의 구조 및 Soot 생성 메커니즘 해석

Numerical Analysis for the Detailed Structure and the Soot Formation Mechanism in Counterflow Ethylene-Air Nonpremixed Flame

  • 발행 : 1999.06.01
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초록

The flame structure and soot formation in the counterflow Ethylene-Air nonpremixed flame are numerically analyzed. The present soot reaction mechanism involves nucleation, surface growth, particle coagulation, and oxidation steps. The gas phase chemistry and the soot nucleation, surface growth reactions are coupled by assuming that the nucleation and soot mass growth has the certain relationship with the concentration of benzene and acetylene. In terms of the centerline velocity and the soot volume fraction, the predicted results are compared with the experimental data. The detailed discussion has been made for the sensitivity of model constants and the deficiencies of the present model. Numerical results indicated that the acetylene addition to the soot surface plays the dominant role in the soot mass growth for the counterflow nonpremixed flame.

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참고문헌

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