Abstract
Turbulent burning velocity of spherically propagating premixed flame continues increasing during flame propagation. The flame front area is considered to be the most dominant factor for turbulent burning velocity. In this study, turbulent iso-octane/O_2/N_2 flame shape was investigated under N_2 diluted condition and elevated pressure condition. Fractal analysis was conducted for stoichiometric spherically propagating premixed turbulent iso-octane/O_2/N_2 flames. Variations of fractal characteristics, such as fractal dimension and inner-cutoff scale with flame radius were investigated.
