Calculations of gas radiation heat transfer in a two-dimensional rectangular enclosure using the line-by-line approach and the statistical narrow-band correlated-k model

Effects of total pressure on non-grey gas radiation transfer in oxy-fuel combustion using the LBL, SNB, SNBCK, WSGG, and FSCK methods

“…Further details can be found in [33,34]. The SNB model provides results of gas radiation transfer in very good agreement with those of the LBL model [28,30] and can be used to produce benchmark solution in two-and three-dimensions, where the LBL calculations are excessively expensive, for evaluation of other approximate gas radiative property models.…”

“…The details of our LBL implementation and the RTE solver have been described in previous studies [28,30]. The discrete-ordinates method (DOM) along with the T 7 angular discretization scheme were used in all the calculations, except for the SNB model, which requires the ray-tracing method described in [34].…”

“…The SNB model parameters, namely γ ν , δ ν , and k ν , developed by Soufiani and Taine [13] for uniform bandwidths of 25 cm À 1 have been found quite accurate by comparing with LBL results using the HITEMP2010 database [28,30,32]. Recently, Rivière and Soufiani updated the SNB model parameters based on LBL calculations using HITEMP2010 for H 2 O and CDSD-4000 for CO 2 [29].…”

“…Further details of the spectral absorption coefficient calculation can be found in the literature [5,17,19,[26][27][28][29][30], in particular those described in [28,30] were followed in the present LBL calculations. In particular, a uniform spectral resolution of 0.02 cm À 1 was employed over a spectral range between 150 and 9300 cm À 1 in all the LBL calculations of spectral absorption coefficient.…”

Evaluation of gas radiation heat transfer in a 2D axisymmetric geometry using the line-by-line integration and WSGG models

“…However, one difficulty that arises is that without a comparison with benchmark solutions, generally achievable only with LBL integration, it is not possible to access the accuracy of a given model. Evaluation of gas models against LBL solutions has been published for one-dimensional slabs [4,6,8,[32][33][34], and for two-dimensional geometries [35][36][37][38][39][40][41][42]. However, since the temperature and concentration fields were not made available for most of those two-dimensional studies, their LBL results cannot be easily used to evaluate other gas models.…”