Exact integral formulation for radiative transfer in an inhomogeneous scattering medium

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The exact integral formulation in terms of the moments of intensity is developed for radiative transfer in a three-dimensional, inhomogeneous medium with anisotropic scattering. Since the use of the present formulation in radiation computation requires the integration only over spatial variables, it reduces the labor of computation. Examples, including isotropic scattering and anisotropic scattering in a slab, and isotropic scattering in a two-dimensional, rectangular medium exposed to collimated radiation, are presented to show the effectiveness of the present formulation. The examples are solved by the Nystrom method. Numerical results for the one-dimensional, isotropically scattering case show excellent agreement with available solutions reported in the literature. Graphic results of both one- and two-dimensional examples are presented to show the effects of the space-dependent albedo.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalJournal of thermophysics and heat transfer
Issue number4
Publication statusPublished - 1990 Oct

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Space and Planetary Science


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