Numerical Comparison of Turbulence-Chemistry Interactions Models with Radiation Effect for Non-premixed Flames: Sandia-E and DLR-B

This work shows the influence of turbulence-chemistry interactions (TCI) and radiation on temperature and species concentrations of turbulent non-premixed flames: Sandia-E and DLR-B. The simulations were done using two computational fluid dynamics (CFD) codes: OpenFOAM and AnsysFluent. The eddy dissipation concept (EDC), partially stirred reactor (PaSR), and beta-probability density function (PDF) methods are implemented with the standard \(k-\varepsilon\) model to predict the TCI. The discrete ordinates (DO) and spherical harmonics (P1) methods were used to solve the radiative heat transfer equations. Numerical results were compared with the available experimental data. The results obtained with two CFD codes using three TCI models and two radiation models are in close agreement. However, beta-PDF with a model constant ( \({C}_{\varepsilon 1}\) ) of 1.6 is more consistent as compared to a model constant of 1.44.