Abstract
The objective of this study is focused on the modelling of the swirl-free and swirling turbulent reacting flows in combustion chambers. Variants of turbulence models, model and non-linear eddy-viscosity models, and chemistry models, fast chemistry and laminar flamelet model, were applied to investigate turbulent reacting flows. The numerical framework of the present predicting procedure is based on the finite volume method, adopting Hybrid and Bounded QUICK schemes in convective terms and SIMPLE algorithm to solve the pressure field. The efforts concentrate on the computation of non-premixed hydrogen-air flame in a dump combustor and propane-air flame in a swirl combustor. The present study reports the first study adopting non-linear eddy-viscosity models in conjunction with laminar flamelet models to compute confined turbulent reacting flows. The merits of the models is scrutinized by comparing the predicted results with experiment measurements.