• 제목/요약/키워드: 커티스-가슨 근사

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비균일 농도 분포를 갖는 비회색 혼합가스로 충만된 정육면체 내의 좁은 파장모델을 이용한 복사열전달 해석 연구 (Study on Narrow Band Solution of the Radiative Transfer within a Cubical Enclosure by Nongray Gas Mixtures with Nonuniform Concentration Profiles)

  • 박원희;천석현;김태국;손봉세
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2001년도 춘계학술대회논문집D
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    • pp.371-376
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    • 2001
  • Radiative transfer by nongray gas mixtures with nonuniform concentration and temperature profiles were studied by using the statistical narrow-band model and ray-tracing method with the sufficiently accurate $T_{60}$ quadrature set. Transmittances through the nonhomogeneous gas mixtures were calculated by using the Curtis-Godson approximation. Three different cases with different temperature and concentration profiles were considered to obtain benchmark solutions for nongray gas mixtures with nonuniform concentration and temperature profiles. The solutions obtained from this study were verified and found to be very well matched with the previous solutions for uniform gas mixtures. The results presented in this paper can be used in developing various solution methods for radiative transfer by nongray gas mixtures.

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