Accession Number : AD0615684

Title :   APPROXIMATIVE BAND ABSORPTION AND TOTAL EMISSIVITY CALCULATIONS FOR H2O,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF THE AEROSPACE AND MECHANICAL ENGINEERING SCIENCES

Personal Author(s) : Penner,S. S. ; Varanasi,P.

Report Date : 27 SEP 1964

Pagination or Media Count : 12

Abstract : A highly simplified procedure, utilizing symmetrical band contours and intensity estimates derived from harmonic oscillator approximations, may be used to calculate band emissivities for H2O at sufficiently high pressures where the rotational fine structure has been removed. Agreement with experimental data is excellent. The empirically determined dependence of total emissivities on the partial pressure of water vapor, at constant total pressure, may be accounted for quantitatively by using a model of randomly distributed dispersion lines falling in the square root region of the curves of growth. (Author)

Descriptors :   (*WATER VAPOR, EMISSIVITY), (*EMISSIVITY, WATER VAPOR), (*ABSORPTION SPECTRA, WATER VAPOR), BAND SPECTRA, MOLECULAR SPECTROSCOPY, HEAT TRANSFER

Distribution Statement : APPROVED FOR PUBLIC RELEASE