DOI: 10.1615/ICHMT.2001.RadiationSymp
ISBN Print: 978-1-56700-163-1
ISSN Online: 2642-5629
ISSN Flash Drive: 2642-5661
APPLICATION OF COMPOSITION PDF METHODS IN THE INVESTIGATION OF TURBULENCE-RADIATION INTERACTIONS
RÉSUMÉ
The composition probability density function (PDF) method is used to study radiating reactive flows. The method is able to treat turbulence-radiation interactions in a rigorous way: many unclosed terms due to turbulence-radiation interactions in the traditional Reynolds-averaging process can be calculated exactly and all others can be accurately modeled by using the optically thin eddy approximation. The application of the method is demonstrated by considering a simplified methane/air diffusion flame, which shows enhancement of the radiative fluxes as a result of turbulence-radiation interactions. The importance of considering different turbulence-radiation interaction terms is investigated, indicating that the absorption coefficient-Planck function correlation is the most important.