抄録
Relationship between the burning velocity of laminar flames and flame stretch can be evaluated using unstretched laminar burning velocity U_1, and Markstein length L. In this study, numerical simulation of spherical laminar flame propagation are examined on the basis of this relationship. The simulation was carried out for the propane-air mixtures of the equivalence ratio of 0.8 and 1.3, at the mixture pressure of 0.10 and 0.50MPa. The results were compared with corresponding experimental measurements. This method was found to reliably simulate the flame propagation of laminar flame in the case of positive Markstein length. The increase in the burning velocity of unstable flames due to the flame instability, in the case of negative Markstein length, may be estimated from observed differences between experiment and simulation.
