Directional Emissivities From a Two-Dimensional, Absorbing-Scattering Medium: The Semi-Infinite Slab-Reference-Cited by-同舟云学术

Directional Emissivities From a Two-Dimensional, Absorbing-Scattering Medium: The Semi-Infinite Slab

Published:1967-11-01 Issue:4 Volume:89 Page:313-320
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Bobco R. P.¹

Affiliation:

1. Hughes Aircraft Co., Space Systems Division, El Segundo, Calif.

Abstract

A closed-form solution is presented for the directional emissivity at any location on the surface of a semi-infinite slab of an absorbing-scattering medium. The medium is assumed to be a gray, isothermal dispersion which emits, absorbs, and scatters isotropically, and is confined by free boundaries. The solution to this two-dimensional problem is found by the approximate technique based on an iteration of the solution to the diffusion equation. Polar plots of directional emissivity are presented which show the influence of optical thickness, surface location, and scattering strength (albedo).

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/89/4/313/5698385/313_1.pdf

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