Predictions of a turbulent reacting jet in a cross-flow

摘要: Abstract The article presents an application of a finite-difference scheme for solving the fluid dynamic equations three-dimensional elliptic flow to problem turbulent reacting jet discharging perpendicularly into unconfined cross-flow. mathermatical model employs standard two-equation, k -ϵ calculate distribution Reynolds stresses, with nonpremixed combustion process being modeled via conserved scalar/prescribed probability density function approach. laminar flamelet concept is used specify instantaneous thermochemical state combusting mixture. In order assess ultimate usefulness predicting consequences associated atmospheric venting and flaring flammable gases, solutions are compared experimental data natural gas flames obtained from wind tunnel studies by Birch et al. Over range ratios cross-flow velocity, predictions flame trajectory length in reasonable qualitative agreement data. At one particular velocity ratio, which detailed measurements mean temperature field available, close between theory experiment provided effects liftoff radiative heat loss incorporated calculation.