Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Application of the WSGGM for arbitrary gas mixtures of water vapor and carbon dioxide

임의 성분비로 구성된 수증기-이산화탄소 혼합가스에 대한 회색가스가중합법의 적용 연구

  • 박원희 (중앙대학교 기계공학과 대학원) ;
  • 김태국 (중앙대학교 기계공학부)
  • Published : 2003.08.01
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Abstract

The weighted sum of gray gas model(WSGGM) is applied to arbitrary mixtures of CO$_2$ and H$_2$0 gases. To evaluate this model, the spectral and total intensities are obtained for two different problem types. One has uniform, parabolic and boundary layer type temperature profiles with uniform partial pressure, and the other has nonuniform partial pressure and temperature profile. The results obtained from the two different problem types show fairly good agreements with the results obtained by the statistical narrow band model(SNB model) which is regarded as the reference solutions. The WSGGM and its data base provided by this study can be used for analysis of radiative transfer by combustion gases with different thermal loadings and chemical compositions.

임의의 성분비로 혼합되어 있는 CO$_2$와 H$_2$O 혼합가스에 대하여 회색가스가중합법(WSGGM)을 적용하였다. 모델의 타당성을 검증하기 위하여 두 가지 다른 형태의 문제를 고려하였다. 첫 번째는 문제는 일정한 분압하의 균일, 포물선 및 경계층 온도 분포를 갖는 매체에 대한 문제이고, 두 번째는 온도 및 분압이 일정치 않은 매체에 대한 문제이다. 고려된 두가지 형태의 문제들에 대하여 WSGGM을 이용한 결과는 기준이 되는 좁은밴드 모델(SNB)의 결과와 잘 일치하고 있는 것을 확인하였다. 본 연구에서 제안된 모델과 데이터베이스는 연소가스에 의한 복사열전달의 해석에 유용하게 사용될 수 있을 것이다.

Keywords

References

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