Validity limits for the global model FS-SNBcK for combustion applications
Poitou, Damien Amaya, Jorge Singh, C Bushan Joseph, David El Hafi, Mouna Cuenot, Benedicte #
Computational Thermal Radiation in Participating Media III: Proceedings of the Eurotherm Seminar 83 pages:0-0
EUROTHERM SEMINAR No. 83 Computational Thermal Radiation in Participating Media edition:3 location:Lisbon date:15-17 April 2009
In this work the Full Spectrum based on the Statistical Narrow Band with the correlated k approximation (FS-SNBcK) is presented. The idea behind the model is to group the narrow bands using the Malkmus model, in order to build a Full Spectrum representation of the space of frequencies. All narrow bands are grouped and weighted by the Planck function to take into account the variation of the blackbody intensity over the whole spectrum. In this paper, validity limits of the model are studied, using a one dimensional isothermal homogeneous gas layer. The influence of species concentration, layer thickness and temperature are tested. A detailed mathematical formulation of the model is presented. Finally, 3D simulations were performed to check the efficiency of the model against other spectral methods.