Abstract

General expressions are derived for the radiance of a nonisothermal gas in terms of the equivalent width of the relevant spectral lines. Any appropriate expression for the equivalent width may be used in these equations taken either from the theory of band models or from exact calculations which use molecular constants. A general expression for the radiance is derived which is based on the Curtis-Godson approximation; this is compared with exact calculations. Radiance calculations for four different temperature distributions are given in order to illustrate the method.

© 1967 Optical Society of America

Band Models for Nonisothermal Radiating Gases

F. S. Simmons
Appl. Opt. 5(11) 1801-1811 (1966)

Further Notes on Band Models for Nonisothermal Radiating Gases

F. S. Simmons
Appl. Opt. 6(8) 1423-1424 (1967)

Radiation from a nonisothermal spherical cavity: an exact solution

Michael J. Caola
Appl. Opt. 40(19) 3232-3234 (2001)

Use of the Curtis–Godson Approximation in Calculations of Radiant Heating by Inhomogeneous Hot Gases

Burton Krakow, Harold J. Babrov, G. Jordan Maclay, and Abraham L. Shabott
Appl. Opt. 5(11) 1791-1800 (1966)

The Theory of the Absorption of Flame Radiation by Molecular Bands

Gilbert N. Plass
Appl. Opt. 4(2) 161-166 (1965)