• 제목/요약/키워드: Directiona Weights

검색결과 1건 처리시간 0.016초

유한체적법에 의한 로켓플룸 저부가열의 열복사 모델 (Thermal radiation model for rocket plume base heating using the finite-volume method)

  • 김만영;백승욱
    • 대한기계학회논문집B
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    • 제20권11호
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    • pp.3598-3606
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    • 1996
  • The finite volume method for radiation is applied to investigate a radiative heating of rocket base plane due to searchlight and plume emissions. Exhaust plume is assumed to absorb, emit and scatter the radiant energy isotropically as well as anisotropically, while the medium between plume boundary and base plane is cold and nonparticipating. Scattering phase function is modelled by a finite series of Legendre polynomials. After validating benchmark solution by comparison with that of previous works obtained by the Monte-Carlo method, further investigations have been done by changing such various parameters as plume cone angle, scattering albedo, scattering phase function, optical radius and nozzle exit temperature. The results show that the base plane is predominantly heated by the plume emission rather than the searchlight emission when the nozzle exit temperature is the same as that of plume.