비균일 온도분포를 가지는 공기/연료분무 혼합기에서의 화염전파

Flame Propagation in the Air/Fuel Spray Mixture with Temperature Nonuniformity

The initiation and propagation of detonation waves in the air/fuel spray mixture has been numerically analyzed. An improved pressure-based method has been applied to predict the transient heterogeneous reacting flows at all speeds. Numerical results indicate that variations in the temperature gradient, the droplet size, and the fuel vapor concentration have the significant effects on the development of detonation wave in the multi-phase reactive media. The interaction mechanism between the flame-generated pressure wave and the combustion wave is discussed in detail.