A numerical simulation of spray atomization, combustion and soot formation in a full scale turbine engine combustor is presented and discussed in this work. Turbulence has been captured by a two equation turbulence model, chemistry by a detailed kinetic mechanism and turbulence chemistry interactions have been accounted for by an APDF-approach (assumed probability density function approach). For the kerosene fuel a surrogate has been used, consisting of n-decane, isooctane and toluene. The injection of the liquid fuel spray has been included by coupling the gas field CFD code with a spray code. Apart from the n-decane and isooctane reaction paths, the chemical kinetic reaction mechanism accounts for species as heavy as toluene. Polycyclic aromatic hydrocarbons heavier than toluene are represented by a sectional approach, while soot is calculated via soot volume fraction and particle number density. Main flow features are investigated and good agreement with the experimental measurements can be reported.

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