GENSPECT: a line-by-line code with selectable interpolation error tolerance

Calculations of gas thermal radiation transfer in one-dimensional planar enclosure using LBL and SNB models

“…Hence, the LBL approach is very computationally demanding. LBL calculations have become an attractive method for radiative transfer with the further development of computing capacity [31], However, it is unlikely that they can be applied to practical multidimensional engineering applications in the foreseeable future. On the other hand, the LBL approach is very valuable to develop benchmark solutions for evaluating the accuracy of other approximate models.…”

DSMC Modeling of Gasdynamics, Radiation and Fine Particulates in Ionian Volcanic Jets

“…This issue will be examined more closely in a future paper. On the other hand, absorption is accounted for when computing radiation spectra with GENSPECT [23].…”

“…The data were also extracted along the 45 line that starts at the center of the vent. Then, these one-dimensional data were processed using the GENSPECT code [23]. GENSPECT is a line-by-line radiative transfer code to calculate gas absorption and emissivity, emission and transmission for a wide range of atmospheric gases from the near UV to the far IR.…”

“…For temperatures and pressures of interest the actual line shape is a combination of the two effects, and a convolution of the two shapes, called the Voigt profile, is used in this work. The relative weighting of the convolution is controlled by additional parameters, along with pressure, partial pressure, and temperature [23].…”

A Rational Approximation for Efficient Computation of the Voigt Function in Quantitative Spectroscopy

“…For example, in a line-by-line radiative transfer simulation to resolve some problems associated with inhomogeneity, the Earth's or other planetary atmosphere can be divided up to 1000 layers [6,7]. Taking into account that computation requires a nested loop procedure in order to adjust properly for the fitting parameters for each atmospheric layer that may contain many different molecular species, the total number of the computed points may exceed hundreds of millions.…”