抄録
Flame front area of turbulent flame is considered to be the dominant factor to turbulent burning velocity. The flame surface density is an important parameter and is considered in turbulent combustion models. The flame surface density of spherically propagating premixed turbulent flame was experimentally obtained by Mie scattered laser tomography technique. The peak value of flame surface density decreased as flame propagated at the same innitial mixture pressure. The values of flame surface density at elevated pressures were larger than that ato 0.10 MPa Both large and small scale wrinkles may affect the value of flame surface density.