MODELING SOOTING TURBULENT JET FLAMES USING AN EXTENDED FLAMELET TECHNIQUE

A strategy is described for the computational prediction of strongly s ooting turbulent non-premixed Barnes in which are coupled a comparativ ely detailed model of soot formation and oxidation together with signi ficant radiative heat loss. The considerable computational simplificat ions introduced by mixture fraction-centred flamelet modelling to addr ess turbulence interaction effects are extended to embrace soot source term modelling through the introduction of a family of flamelet profi les, each characterised by varying radiative loss. Encouraging compari sons with experimental measurement are reported for single and multipl e flamelet representations in turbulent jet flames of ethylene and pre -vaporised kerosine.