TY - JOUR
TI - A comparison of two statistical narrow band models for non-gray gas radiation in planar plates
AU - Chu Huaqiang
AU - Ren Fei
AU - Wei Yan
JN - Thermal Science
PY - 2018
VL - 22
IS - 12
SP - 777
EP - 784
PT - Article
AB - Non-gray gas radiation analysis and comparison are conducted by combining a  ray tracing method and two statistical narrow band (SNB) spectral models,  namely the Goody SNB model and the Malkmus SNB model. In this paper, gas  radiation in real gas containing H2O, H2O/N2, or H2O/CO2/N2 mixtures at 1 atm  in planar plates was studied. Comparisons between these models are performed  using the latest narrow-band database. The present computations are validated  by reproducing the published results in the literature. The radiative source  term, the wall fluxes, the narrow-band radiation intensities along a  line-of-sight and the computing time are all compared. From the comparisons,  it is found that the Malkmus SNB model is somewhat superior to the Goody SNB  model and the former is preferred in engineering application.