Effects of preferential transport and strain in bluff body stabilized lean and rich premixed CH4/air flames

The effects of preferential transport and strain on the scalar structure of turbulent premixed bluff body stabilized flames are examined using Raman–Rayleigh–LIF diagnostics. Bulk flowrate and equivalence ratio are varied parametrically. Comparisons with laminar flame calculations are used both to validate the quality of the experimental measurements and to facilitate interpretation of the measured response of the bluff body flames to changes in...