In arbitrary curvilinear coordinates

numerical investigations of three-dimensional two-phase spray combustion flow fields for a slinger annular combustor were carried out.Three-dimensional body-fitted grids were generated by TTM (Thompson-Thames-Martin) method

k-ε model was used to simulate the turbulent viscosity;EBU (eddy break-up ) -Arrhenius combustion model

EDC (eddy dissipation concept) combustion model and SOM (second-order-moment) combustion model were applied to predict turbulent combustion rate.The gas and liquid phases were treated with Eulerian-Lagrangian method and the gas-liquid coupling was calculated with PSIC (particle-source-in-cell) arithmetic.The effects of different combustion models on two-phase spray combustion flow fields were studied.The numerical results are in good agreement with the experimental data.It shows that all of the combustion models are used to simulate the combustion process in slinger annular combustor

but the SOM combustion model and EBU combustion model are better than EDC combustion model for simulation of two-phase spray combustion flow fields in the slinger annular combustor.