A comparison of approximate models for radiation in gas turbines

A consistent approach for the coupling of radiation and hydrodynamics at low Mach number

“…As example for such approximations we cite the diffusion (Rosseland) approach and the simplified P N equations, see [6,12,33] among others. These simplified models are derived by asymptotic analysis and perform very well when the medium under consideration is isotropic and optically thick (opaque).…”

Existence and bounds for the half-moment entropy approximation to radiative transfer

“…Especially when high temperatures are involved, the effect of radiation becomes very important. Applications include astrophysics [16] (stellar atmospheres), re-entry of space vehicles [19], combustion in gas turbine combustion chambers [7], industrial glass cooling [13], and external photon beam radiotherapy [9].…”

Radiation models for thermal flows at low Mach number

“…The SP N approximations have also been studied in [8,20] for glass manufacturing and in [3] for gas turbines. Here, we extend these approximations to the radiation hydrodynamics.…”

“…The SP N approximations were first proposed in [4] and theoretically studied in [10]. In [9,20], the SP N approximations have been extensively studied for radiative transfer in glass manufacturing, while in [3] they have been implemented for radiation in gas turbines. The SP N approximations have also been studied in [1] for internal radiation in crystal growth.…”