Thermal radiation absorption in rectangular-groove cavities

E. M. Sparrow, V. K. Jqnsson

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The amount of energy absorbed when a stream of external radiation enters a rectangulargroove cavity has been calculated for a variety of surface conditions, cavity depths, and incident energy distributions. The surfaces of the cavity are either diffuse reflectors or specular reflectors, and a wide range of reflectivity values has been considered. The incoming radiation is either diffusely distributed across the cavity opening or else arrives in a bundle of parallel rays. The results show that for diffuse incoming radiation, a specular cavity absorbs more effectively than does a diffuse cavity. For incoming radiation in a parallel ray bundle, the comparison depends on the angle of inclination of the rays. 1963 by ASME.

Original languageEnglish (US)
Pages (from-to)237-244
Number of pages8
JournalJournal of Applied Mechanics, Transactions ASME
Volume30
Issue number2
DOIs
StatePublished - Jan 1 1960

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