Analysis of pre-ignition to super-knock: Hotspot-induced deflagration to detonation

作者：Wang, Zhi^*; Qi, Yunliang; He, Xin; Wang, Jianxin; Shuai, Shijing; Law, Chung K.

来源：Fuel, 2015, 144: 222-227.

DOI：10.1016/j.fuel.2014.12.061

• Combustion
• Pre-ignition
• Super-knock
• Deflagration
• Detonation

Occurrence of sporadic super-knock is the main obstacle in the development of advanced gasoline engines. By utilizing a rapid compression machine, events of pre-ignition and super-knock in a closed system under high temperature and high pressure were captured by synchronous high-speed direct photography and pressure measurement, with the results demonstrating that the mechanism of super-knock is constituted by hotspot-induced deflagration to detonation followed by high-pressure oscillation (DDP).

• 出版日期2015-3-15
• 单位清华大学