An experimental study on turbulent premixed CO/H2 /CO2 /O2 flames as a model of syngas combustion was conducted to understand the flame-turbulence interaction of syngas oxyfuel turbulent premixed flames at high pressure.The instantaneous flame front structure of the turbulent premixed flames at high pressure was obtained with the OH-PLIF technique.The quantitative flame front structure parameters like flame volume,flame surface density and flame front scale were derived.The flame-turbulence interaction was ...