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Multi-Group Full-Spectrum k-Distribution Database for Water Vapor Mixtures in Radiative Transfer Calculations

[+] Author Affiliations
Hongmei Zhang

GE Global Research, Niskayuna, NY

Michael F. Modest

Pennsylvania State University, University Park, PA

Paper No. HT2003-47321, pp. 797-806; 10 pages
  • ASME 2003 Heat Transfer Summer Conference
  • Heat Transfer: Volume 1
  • Las Vegas, Nevada, USA, July 21–23, 2003
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-3693-2 | eISBN: 0-7918-3679-7
  • Copyright © 2003 by ASME


A thorough investigation of the absorption coefficient dependence on temperature and pressure has been performed for water vapor and a 32-group database has been assembled for H2 O mixtures at atmospheric pressure, based on the Multi-Group Full-Spectrum Correlated k-distribution model. The method is fully scalable, i.e., spectral groups from the database can be combined to obtain coarser group models (N = 1, 2, 4, [[ellipsis]]) for greater numerical efficiency (accompanied by slight loss in accuracy). The databases for CO2 and H2 O, together with the random-overlap mixture model have been used to simulate a practical combustion problem.

Copyright © 2003 by ASME



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