RAMAN MEASUREMENTS IN A TURBULENT H-2 N-2 DIFFUSION FLAME/

Simultaneous space and time resolved measurements of O2, N2, H2O and H -2 have been made using spontaneous Raman scattering in a turbulent H- 2/N2 diffusion flame. A narrowband XeCl excimer laser working at 308 n m and an intensified multichannel array camera were used to give full information about all major species and spectral background simultaneo usly. The fluorescence background from OH radicals in the high tempera ture regions of the flame was taken into account by a background fitti ng routine. This paper presents new experimental results containing co ncentrations. temperatures, mixture fractions f, f-plots and rms of fl uctuations of f in comparison to numerical predicted results obtained with a Reynolds stress flame model.