CFD simulation of a gas turbine combustor.

摘要

Advances in CFD modeling and the availability of a gas turbine engine have motivated the simulation of its non-premixed combustor burning diesel fuel. The simulations were conducted with a 3D detailed geometry model with unstructured grids based on the upwind finite volume method and SIMPLE algorithm. Both the kappa-epsilon and RSM turbulence models in conjunction with the Eddy Dissipation and presumed beta-PDF combustion models were used for the simulations. The injection of the liquid fuel was modeled with Lagrangian discrete phase model.; The simulations were validated against the results from the literature, and this study confirmed the validities of CFD modeling for the current combustor. Through this study, the advantages and limitations of the models employed are evaluated. Recommendations for future research are suggested based on the recently available computing resources and soon to-be-available combustor test rig.