Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Comparison of Regularization Techniques for an Inverse Radiation Boundary Analysis

역복사경계해석을 위한 다양한 조정법 비교

  • 김기완 (한국과학기술원 대학원 항공우주공학) ;
  • 신병선 (오덱(주) 촉매기술팀) ;
  • 길정기 (현대자동차 배기연구팀) ;
  • 여권구 (현대자동차 배기연구팀) ;
  • 백승욱 (한국과학기술원 항공우주공학)
  • Published : 2005.08.01
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Abstract

Inverse radiation problems are solved for estimating the boundary conditions such as temperature distribution and wall emissivity in axisymmetric absorbing, emitting and scattering medium, given the measured incident radiative heat fluxes. Various regularization methods, such as hybrid genetic algorithm, conjugate-gradient method and finite-difference Newton method, were adopted to solve the inverse problem, while discussing their features in terms of estimation accuracy and computational efficiency. Additionally, we propose a new combined approach that adopts the hybrid genetic algorithm as an initial value selector and uses the finite-difference Newton method as an optimization procedure.

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References

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