Simulationeous rayleigh.raman,and lif measurements in turbulent premixed methane-air flames

摘要

Instantaneous measrueemtns of temerpature,major species.OH,CO,and NO are performed in turbulent premixed flmes using simultameous rayleigh scattering,Raman scatterin,and laser-induced fluo rescence (LIF) .Themperature iis determined from rayleigh scattering,and concentrations of CH_4,O_2,N_2,H_2O,CO_2,and H_2 and obtaiend from raman scattering.Linear LIF is used to measrue OH and NO,while two-photon LIF is used to detemrine CO concentrations.The two-photon CO-LIF system provides significant imporvemens over CO-Raman measruements.