Directional Emittance of a Two-Dimensional Ceramic Coating

Turner, William D.; Love, T. J.

doi:10.2514/3.49987

Cited by 21 publications

(10 citation statements)

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“…It is found that the variation of the emittance with the refractive index is nonlinear and the shape of curves is the same for n = 1.4 and 1.8. Turner's and Bobco's results 1 - 19 for n = 1.0 are also plotted for reference. …”

Section: Resultsmentioning

confidence: 98%

“…For purpose of comparison, the normal emittance for two different optical thicknesses, 2c = 5.0 and 3.0, and various albedos obtained by this work and that by Turner and Love 19 are shown in Figs. 4 and 5.…”

Section: Resultsmentioning

confidence: 98%

“…For the path, s' = s -(r' -r) and, at point B, ds' dft' = dV'/\r' -r| 2 , where dV is the element of volume at point B and dil' = sin0' d0 x d^'. Using then, (18) where (19) …”

Section: S(s')e-s 'Ds' P Y (Q'')s(s')e-s 'Ds' Y/sino' Sintf)'mentioning

confidence: 99%

“…Turner and Love 19 analyzed directional emittance of a two-dimensional coating with Fresnel reflection at the boundaries. However, the Monte Carlo method is very laborious and time consuming.…”

Section: Introductionmentioning

confidence: 99%

“…1 ' 19 ' 20 Recently, numerous papers dealing with anisotropic scatter effects 2 -7 ' 12 ' 14 have been published in the literature. The effects of Fresnel reflectance may give a similar type of distribution, depending on the geometry and on incident radiation.…”

Section: Introductionmentioning

confidence: 99%

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Directional emittance of a two-dimensional scattering medium with Fresnel boundaries

Sutton

Love

1989

Journal of Thermophysics and Heat Transfer

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The influences of the refractive index, scattering albedo, and optical sizes on the thermal radiation in a two-dimensional rectangular, isotropically scattering medium bounded by optically smooth boundaries having Fresnel reflection are considered. The complexity of formulation resulting from this specular reflection is reduced by treating the images as effective media and by neglecting the radiation from faraway images. The problem can then be described by an integral equation (the source function) that is solved iteratively here; the method is then applied to study the directional emittance of a two-dimensional semi-infinite slab. Results show that the directional emittance is azimuthally dependent for the rectangular geometries, that the effects of the relative refractive index on the emittance depend significantly on the albedo, and that Fresnel reflection generally decreases the angular dependence of the emittance compared to free boundaries.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 98%

“…For the path, s' = s -(r' -r) and, at point B, ds' dft' = dV'/\r' -r| 2 , where dV is the element of volume at point B and dil' = sin0' d0 x d^'. Using then, (18) where (19) …”

Section: S(s')e-s 'Ds' P Y (Q'')s(s')e-s 'Ds' Y/sino' Sintf)'mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations