• 제목/요약/키워드: quasi-laminar reaction modelling

검색결과 1건 처리시간 0.016초

준충류 근사를 이용한 수소-공기 비예혼합화염의 질소산화물 생성예측 (Numerical Prediction of NOx in the Nonpremixed Hydrogen-Air Flame using the Quasi-Laminar Reaction Modelling)

  • 김성룡;정인석;윤영빈
    • 한국연소학회지
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    • 제4권1호
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    • pp.131-139
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    • 1999
  • A Numerical Analysis of NOx production in Hydrogen-Air flame is performed using the quasi-laminar reaction modelling. As results, in low global strain rate region, $U_F/D_F\;{\leq}\;50,000$, the quasi-laminar reaction modelling reproduces the experimentally observed EINOx half power scaling that the ratio of EINOx and flame residence time, $L_f^3(D_F^2U_F)$, is proportional to the square root of global strain rate. Thus, it suggests that turbulence-chemistry interaction has a minor impact on the trend of NOx production in low global strain rate region. However, the quasi-laminar reaction modelling predicts the higher temperature and NOx than experimentally observed. This overprediction may be due to the lack of radiation and quasi-laminar reaction modelling.

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