Exact expressions for radiative transfer in a three-dimensional rectangular geometry

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Journal of Quantitative Spectroscopy and Radiative Transfer, ISSN: 0022-4073, Vol: 28, Issue: 6, Page: 507-526

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Citations 45
Citation Indexes 45
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Crosbie, Alfred L.; Schrenker, R. G.
Elsevier BV; Elsevier
Physics and Astronomy; Chemistry; Aerospace Engineering; Mechanical Engineering
article description
The equations for the source function, flux, and scattered intensity normal to the surface are formulated in cartesian coordinates for a 3-D rectangular absorbing, emitting, isotropically scattering medium exposed to both diffuse and collimated radiation. Simplifications of these equations for certain important geometries and uniform loading are presented. Also, superposition of these equations and radiative equilibrium are discussed. For pure scattering, the source function at the center of the square and cubic geometries is analytically determined for the diffuse boundary condition. The generalized 3-D equations are shown to reduce to the familiar 1-D results. Also, the equations for a strongly anisotropic phase function which is made up of a spike in the forward direction superimposed on an otherwise isotropic phase function are expressed in terms of the isotropic expressions.