Turbulent burning velocity under high pressure conditions were estimated. The turbulent burning velocity was measured by the angle of premixed flame. And, the effect of pressure on turbulent scale, which has strong effect on the burning velocity, was evaluated under the unburned condition. Using of the turbulent scale, the experimental turbulent burning velocity was compared with the theoretical model. The theoretical one was in good agreement with experimental one. Further, using of Kovasznay number defined by the turbulent scale, the relation of the turbulent burning velocity and the turbulent flame structure was discussed.
