Computational Combustion Laboratory (CCL)


Full Spectrum k-Distribution (FSK) Look-up tables for mixtures of combustion gases


Lookup table v1 (only gases, no soot)

This is the first iteration of lookup table. It contains only three major combustion gases at pressures from 0.1 bar to 80 bar. This table was reported in the following paper:

  • C. Wang, W. Ge, M.F. Modest, and B. He, "A full-spectrum k-distribution look-up table for radiative transfer in nonhomogeneous gaseous media," J. Quant. Spectrosc. Radiat. Transf., vol. 168, pp. 46-56, 2016. https://doi.org/10.1016/j.jqsrt.2015.08.017

Lookup table v2 (gas and soot)

On the second iteration of lookup table soot was added to the mix. The structure of the table was also optimized leading to redduction in storage and improvement in efficiency. This table was reported in the follow-up paper:

  • C. Wang, M. F. Modest, and B. He, "Full-spectrum k-distribution look-up table for nonhomogeneous gas-soot mixtures." Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 176, pp. 129-136, 2016. https://doi.org/10.1016/j.jqsrt.2016.02.007

Lookup table v2a (v2 with a transformation factor)

This is a variant of Lookup table v2. This was constructed with a transformation factor of 2. The structure of the table remains same as v2. In most cases, table v2a improves the accuracy of emission prediction and keeps the similar (marginally better) accuracy for absorption prediction compared to v2. In v2a the transformation factor makes large k-values more important. The accuracy of v2a may, therefore, be worse than v2 when small k-values are important for radiative calculations. Thus, Lookup table v2 and v2a co-exist.

This table was reported in the paper:

This table is currently being prepared for public release.
Expected release date: Summer 2020.

Lookup table v3 (efficient)

On the third iteration of lookup table, the construction of the lookup table was changed leading to reduction in number interpolation steps and better management of storage. This table was reported in the following paper:

  • C. Wang, B. He, M. F. Modest, and T. Ren, "Efficient full-spectrum correlated k-distribution look-up table." Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 219, pp. 108-116. 2018. https://doi.org/10.1016/j.jqsrt.2018.04.002

This table is currently only available for atmospheric pressure.


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