CFD Liquid Spray Combustion Analysis of a Single Annular Gas Turbine Combustor

Vanco Smiljanovski, Norbert Brehm
1999 Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations   unpublished
AB ST RACT In this paper CFD analysis of the steady two-phase turbulent com busting fl ow in a single annular low-NOx combustor is presented. For this purpose the commercial code CFD-ACE (1998) was used, where Eulerian equations are solved for the gas phase and the liquid spray fuel droplets are treated in a Lagrangian frame of reference allowing for evaporation of droplets and providing source terms for the gas phase. The standard k-E model was used for turbulence and an assumed shape
more » ... umed shape probability density function was used for the instantaneous chemistry in the conserved scalar combustion model. Thermal NOx is assumed to be the only source of NOx production and is decoupled from the gas phase reacting flow and calculated in a postprocessing step. The calculation is done on a block structured multi-domain computational grid. Particular attention has be paid to the detailed modeling of the fuel inject . or having multiple air swirler passages starting from the trailing edge of the air swirler vanes and utilizing up to 400000 computational grid cells for the entire model.
doi:10.1115/99-gt-300 fatcat:xuocne4425fl3mceg3nplhvspu