In the present study numerical calculations are used to solve reacting flow in a gas turbine combustor. A 3-D Favre-Averaged Navier-Stokes solver for a mixture of chemically reacting gases is applied to predict the flow pattern, gas temperature and fuel and species concentrations in the entire combustor. The complete combustor geometry with all important details such as air swirler vane passages and secondary holes are modeled. The calculations are carried out using three different turbulence models. Comparisons are made between the standard k-ε model, RNG k-ε model and a Reynolds stress transport model. To provide a closure for the chemical source term the Eddy Dissipation model is used. A lean direct injection of a liquid fuel is employed. Furthermore the influence of radiation will be investigated.

Volume Subject Area:
CFD Applications in Large Facilities
Topics:
Combustion, Combustion chambers, Computational fluid dynamics, Gas turbines, Modeling, Flow (Dynamics), Fuels, Eddies (Fluid dynamics), Energy dissipation, Gases, Geometry, Radiation (Physics), Stress, Temperature, Turbulence
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