Evaluating the strain and fuel concentration of counterflow diffusion flames by selected species (Q979531)

Summary: In the present investigation, the response of methane-nitrogen/air and methane/air counterflow diffusion flames to the strain rate and to the initial fuel concentration was studied at atmospheric pressure by computations. The reaction model used was related to experimental data from the literature. After the successful check of the model, the study concentrated on finding suitable species for the characterisation of strained reactive flows. It suggests the evaluation of strain rates and initial fuel concentrations based on the concentrations of only a few key species which are also able to indicate the limit at which the pollutions of polyaromatic hydrocarbons (PAHs) can be minimised.