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The objective of this studg is focused on the modelling of the swirl-free and swirling turbulent reacting flows in combustion chambers. The k-ε turbulence model was employed to model the turbulence. Two different combustion models, fast chemistry and laminar flamelet model have been employed to account for the turbulence chemistry interaction. The numerical framework of the present predicting procedure is based on the finite volume method, adopting Hybrid and Bounded QUICK scheme in convection terms and SIMPLE algorithm to solve the pressure field.
The efforts concentrates 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 more complex chemistry models, laminar flamelet models, in conjunction with k-ε turbulence models to compute confined turbulent reacting flows. The merits of the models is scrutinized by comparing the predicted results with experimental measurements.
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