Radiant interchange among curved specularly reflecting surfaces - application to cylindrical and conical cavities

S. H. Lin, E. M. Sparrow

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

method of analysis is formulated for determining the radiant interchange among specularly reflecting surfaces, some or all of which may be nonplanar. The emitted radiant energy is diffusely distributed. The formulation makes use of the exchange factor, which has many of the properties of the diffuse-angle factor. Indeed, the exchange factor is constructed as a series, each term of which is a diffuse-angle factor multiplied by a poiuer of the surface reflectance. A general formalism is developed for deriving the exchange factor. Application of the method of analysis is made to the cylindrical cavity of finite depth and to the conical cavity. Numerical results are then obtained both for the local and overall heat transfer for a wide range of the geometrical and radiative parameters. In general, it is found that specularly reflecting cavities are more efficient emitters and absorbers of radiant energy than are diffusely reflecting cavities.

Original languageEnglish (US)
Pages (from-to)299-307
Number of pages9
JournalJournal of Heat Transfer
Volume87
Issue number2
DOIs
StatePublished - Jan 1 1965

Fingerprint

Dive into the research topics of 'Radiant interchange among curved specularly reflecting surfaces - application to cylindrical and conical cavities'. Together they form a unique fingerprint.

Cite this