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자료유형
학술저널
저자정보
저널정보
대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.20 No.2
발행연도
2006.2
수록면
242 - 250 (9page)

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초록· 키워드

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Detailed structures of the counterflow flames formed for different inlet fluid temperatures and different amount of additives are studied numerically. The detailed chemical reactions are modeled by using the CHEMKIN-Ⅱ code. The discrete ordinates method and the narrow band based WSGGM with a gray gas regrouping technique (WSGGM-RG) are applied for modeling the radiative transfer through non-homogeneous and non-isothermal combustion gas mixtures generated by the counterflow flames. The results compared with those obtained by using the SNB model show that the WSGGNM-RG is vary successful in modeling the counterflow flames with non-gray gas mixture. The numerical results also show that the addition of CO₂ or H₂O to the oxidant lowers the peak temperature and the NO concentration in flame. But preheat of fuel or oxidant raises the flame temperature and the NO production rates. O₂ enrichment also causes to raise the temperature distribution and the NO production in flame. And it found that the O₂ enrichment and the fuel preheat were the major parameters in affecting the flame width.

목차

Abstract

1. Introduction

2. Theory

3. Numerical Results and Discussion

4. Conclusions

Acknowledgements

References

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